Amazon Repricing Analytics: 6 Metrics That Tell You if Your Strategy Is Working
Last updated: September 2026
A repricer that is winning the Buy Box at prices close to the floor is not working well. It is winning at the lowest commercially acceptable margin. A repricer that is winning the Buy Box at prices well above the floor, with a stable or rising average selling price, is producing the outcome repricing is actually for.
Most sellers check two numbers after activating a repricer: total revenue and Buy Box rate. Total revenue tells you how much you sold. Buy Box rate tells you how often you held the Featured Offer. Neither number tells you whether the strategy is profitable, or whether the configuration is leaving money on the table. Six specific metrics answer those questions, and most are available directly in Seller Central or the Repricer.com dashboard.
TL;DR: The six repricing metrics to track weekly are: Buy Box win rate per ASIN versus the equal-share baseline, floor breach rate, average selling price trend, gross profit per unit, suppressed Buy Box rate, and repricing events per hour versus your plan's EPM limit. Of these, ASP trend and floor breach rate together tell you the most about whether repricing is working correctly: improving or stable ASP with low floor breach rate means the configuration is capturing margin. Declining ASP with high floor breach rate means the competitive range is at or below your cost floor. A sourcing problem, not a repricing configuration problem.
Why most sellers track the wrong metrics after activating a repricer
The two most common post-repricer metrics. Total revenue and overall Buy Box percentage. Do not tell you whether the repricer is producing profitable outcomes. Revenue increases when you sell more units at any price, including below your target margin. Overall Buy Box percentage averages across all ASINs, hiding individual listings that are significantly under or over the equal-share baseline.
Why total revenue is insufficient:
Revenue goes up when you sell more units. It goes up equally whether those units sold at 20% margin or at 5% margin. A repricer that aggressively chases Buy Box share by pricing near the floor increases revenue while reducing profitability. The correct performance question is not "did revenue increase?" but "did revenue-per-unit-of-margin increase?"
Why overall Buy Box percentage misleads:
Averaging Buy Box rate across 50 ASINs produces a number that hides what is actually happening. An overall rate of 55% might mean every ASIN is at 55%, which is slightly above equal share for a 2-seller listing but well below it for a 4-seller listing. Or it might mean 10 ASINs are at 85% (ceiling-hunt performing well on low-competition listings) and 40 ASINs are at 44% (below equal share on listings where the configuration is underperforming). The aggregate tells you nothing actionable.
The metric framework:
The six metrics below track repricing performance across two dimensions: margin quality (ASP trend, gross profit per unit, floor breach rate) and Buy Box access (win rate per ASIN, suppressed Buy Box rate, EPM utilisation). Both dimensions need to be healthy for the repricing strategy to be working correctly.
Metric 1: Buy Box win rate per ASIN
The Buy Box win rate for each active repricing ASIN measures what percentage of that listing's sessions your offer held the Featured Offer position. The relevant benchmark is the equal-share baseline for that specific listing, not an overall target across all ASINs.
How to calculate the baseline:
Equal-share baseline = 100 divided by the number of active FBA sellers on the listing
Performance target = equal-share baseline multiplied by 1.5
For a 3-seller listing: equal share = 33.3%, performance target = 50% For a 5-seller listing: equal share = 20%, performance target = 30% For a 2-seller listing: equal share = 50%, performance target = 75%
Where to find it:
Seller Central Business Reports > By ASIN > Featured Offer Percentage. Pull this weekly for your top 20 revenue ASINs. The win rate benchmarks guide covers the specific targets by competitive density in more detail.
What to do if below the performance target:
Below the equal-share baseline on a competitive listing with correct pricing: investigate the rule type. An undercut rule on a 2-seller listing is likely producing a price spiral where both sellers race toward the floor. Switch to position-targeting or ceiling-hunt based on seller count.
Below the equal-share baseline with pricing above the competitive Buy Box price: the minimum price floor is above the competitive range for this ASIN. Either the floor is incorrectly calculated or the sourcing cost for this lot is too high for the current market.
Metric 2: Floor breach rate
The floor breach rate is the percentage of repricing events on a given ASIN where the competitive price fell to or below your minimum price floor. A high floor breach rate is the most direct indicator that the competitive range is at or near your cost floor. Which means either the floor is too high or the market for this ASIN is not commercially viable at your cost structure.
What the floor breach rate tells you:
A floor breach occurs when a competing offer prices at or below your minimum, and your repricer holds at the floor rather than following. This is the correct behaviour. The repricer is preventing below-floor sales. But if the competitive price is at or below your floor frequently, you are not winning Buy Box during those periods.
Floor breach rate under 10%: the competitive range is comfortably above your floor. The repricer has room to operate between floor and ceiling.
Floor breach rate 10% to 25%: the competitive range is approaching your floor regularly. The ASIN is under margin pressure. Investigate whether the sourcing cost is viable for the current market.
Floor breach rate above 25%: the competitive range is frequently at or below your floor. This ASIN is commercially problematic at the current sourcing cost and target margin. Either source more cheaply, lower the target margin (accepting lower return to stay competitive), or exit the ASIN.
Where to find it:
Available in the Repricer.com analytics and reporting dashboard. The analytics and reporting page details the specific report views.
Combined reading with Buy Box win rate:
The two metrics together diagnose most repricing problems:
High floor breach rate + low Buy Box win rate: sourcing cost too high for the competitive range
Low floor breach rate + low Buy Box win rate: rule type mismatch or floor set above the competitive range
Low floor breach rate + high Buy Box win rate: configuration working correctly
High floor breach rate + high Buy Box win rate at the floor: winning Buy Box at minimum margin. Review whether the ASIN is worth continuing
Start your 14-day free trial. Access the Repricer.com analytics dashboard and track floor breach rate, ASP trend, and Buy Box win rate per ASIN from day one.
Metric 3: Average selling price trend
Average selling price (ASP) trend measures whether the price at which your units are actually selling is stable, rising, or declining over time. Declining ASP at stable or improving Buy Box win rate is the clearest sign that the repricer is trading margin for share. Winning the Buy Box at increasingly lower prices.
The correct comparison:
Compare ASP this week to ASP the prior two weeks for the same ASIN. Account for seasonal demand changes that affect the competitive price range. A declining ASP in a post-peak period is expected. A declining ASP during stable demand is a configuration signal.
Where to find it:
Seller Central Business Reports > By ASIN > Average Selling Price. This is the actual average price at which your offer converted, not a listed price.
What a healthy ASP looks like:
ASP should be stable or rising relative to the floor for each ASIN. If the repricer has a ceiling set from Keepa's 90-day historical high, ASP above the floor means the repricer is capturing the available margin range. ASP consistently at the floor means the competitive range is compressing toward your cost.
What to do when ASP is declining:
First, check whether the 90-day historical Buy Box price high (the ceiling input) has declined. If competitors are consistently setting lower prices, the ceiling needs updating. Second, check the floor: a declining ASP that is still above the floor is less urgent than one approaching the floor. Third, check the rule type: an undercut rule in a high-competition environment produces declining ASP as the repricer drives prices down to win share.
Metric 4: Gross profit per unit
Gross profit per unit is the revenue per unit minus all variable costs: COGS, FBA fee, referral fee, and prep cost. It is the per-unit metric that tells you whether repricing is actually profitable, not only active.
The calculation:
Gross profit = selling price minus (COGS + FBA fee + referral fee + prep cost) Gross margin = gross profit divided by selling price, expressed as a percentage
This is the metric the floor formula protects. A correctly set floor guarantees that gross margin never falls below the target. Tracking it confirms the floor is correctly set.
Where to find it:
Not directly available from Seller Central without calculation. Options:
Calculate manually per ASIN from cost inputs and Business Reports revenue
Use Sellerboard, InventoryLab, or another P&L tool that tracks unit economics automatically
Calculate from the Repricer.com analytics data if Net Margin Repricing is configured with your cost inputs
What to do if gross profit per unit is below target:
If gross profit is below the target margin: the floor is potentially incorrectly set (omitting prep cost, using pre-update FBA fees), the selling price has declined to or below the floor, or the sourcing cost has increased without a floor update. Recalculate the floor using the current cost inputs and update the minimum price in Repricer.com. The net margin repricing page covers the specific cost inputs and how they flow into the floor.
Metric 5: Suppressed Buy Box rate
Suppressed Buy Box rate is the percentage of sessions on a listing where there is no Featured Offer at all. The Buy Box is not awarded to any seller. A suppressed Buy Box means no seller is generating the typical conversion rate from the Add to Cart button, including you.
Why Buy Box suppression matters for repricing sellers:
A suppressed Buy Box on a listing you reprice is periods of zero Buy Box availability that appear in your analytics as reduced win rate. If your Buy Box win rate drops without any change in your pricing configuration, suppression is a likely cause.
Common causes of Buy Box suppression:
The listing price is significantly above Amazon's reference price (the price Amazon considers competitive or typical for the product)
All active sellers are priced above the level Amazon deems competitive
Category-specific restrictions or account health issues affecting one or more sellers on the listing
Where to find it:
Amazon does not provide a direct "suppression rate" metric in standard Business Reports. Suppressed periods appear as gaps in Featured Offer data. Repricer.com's dashboard shows Buy Box status per ASIN, which includes suppressed states. The Repricer.com features page covers the specific monitoring views.
What to do if suppression is above 1%:
Check the listing's Buy Box price history in Keepa. A suppressed listing will often show periods with no Buy Box price in the chart. If all sellers on the listing are pricing significantly above a prior stable range, the collective pricing is likely triggering suppression. Lowering prices toward the historically competitive range typically resolves it. If suppression persists despite competitive pricing, investigate listing-level account health flags in Seller Central.
Metric 6: Repricing events per hour vs your EPM limit
Events Per Minute (EPM) is the number of pricing events your repricer processes per minute. Your Repricer.com plan has a specific EPM limit. If your catalogue generates more competitive events than your EPM limit processes, events queue. Response times extend and the effective reaction speed of your repricer decreases.
Why EPM utilisation matters:
The speed advantage of Repricer.com comes from its SQS-based real-time event detection and sub-90-second response time. This advantage is partially negated if events queue because EPM limits are being reached. A seller at 95% EPM utilisation on a volatile catalogue is effectively running a slower repricer than their plan describes.
How to check EPM utilisation:
Repricer.com's dashboard shows repricing event volume over time. Compare the events-per-minute throughput to your plan's EPM limit. If the peak throughput during high-activity periods (Prime Day, Q4 evenings, BFCM) approaches the EPM limit, response times are extending during those periods.
What to do at high EPM utilisation:
If peak event volume regularly approaches your plan's EPM limit: consider moving to a higher-tier plan with greater EPM capacity. The event volume that matters most is during peak competitive periods, not average volume across the week. EPM constraints during Q4 peak are more commercially significant than the same constraint during a quiet Tuesday.
How to find these metrics in Repricer.com and Seller Central
The six metrics come from two sources: Seller Central Business Reports for the marketplace-side data, and the Repricer.com analytics dashboard for the repricer-side data. Neither source alone gives the complete picture.
From Seller Central Business Reports (By ASIN):
Access: Seller Central > Reports > Business Reports > Sales and Traffic by ASIN.
From Repricer.com analytics and reporting:
Access: Repricer.com dashboard > Analytics and Reporting.
The weekly review process:
A weekly metrics review for 20 active repricing ASINs takes approximately 20 to 30 minutes using this framework:
Pull Featured Offer Percentage and ASP from Seller Central Business Reports for the week
Compare to prior week and equal-share baseline per ASIN
Pull floor breach rate and event volume from Repricer.com dashboard
Flag any ASIN showing declining ASP, below-baseline win rate, or floor breach rate above 10%
Run the 10-point repricing configuration audit on flagged ASINs
Key Takeaways
Total revenue and overall Buy Box percentage are insufficient metrics for evaluating repricing strategy. Revenue goes up at any margin level. Overall Buy Box rate averages across ASINs in ways that hide individual listing problems.
The six metrics: Buy Box win rate per ASIN vs equal-share baseline, floor breach rate, average selling price trend, gross profit per unit, suppressed Buy Box rate, and EPM utilisation. These together cover margin quality and Buy Box access.
Floor breach rate and ASP trend together diagnose most repricing problems. High floor breach rate + declining ASP = sourcing cost too high for the competitive range. Low floor breach rate + stable or rising ASP = configuration working correctly.
The weekly review process covers all six metrics for 20 to 50 ASINs in 20 to 30 minutes when data is pulled from Seller Central Business Reports and the Repricer.com dashboard together.
Suppressed Buy Box periods are invisible in standard analytics and require specific monitoring to detect. Repricer.com's Buy Box status monitoring flags suppressed listings automatically.
Action Plan
Pull Featured Offer Percentage from Seller Central Business Reports for your top 10 revenue ASINs over the past 7 days. Calculate the equal-share baseline for each (100 divided by active FBA seller count) and identify any ASIN below 1.5x baseline.
Pull Average Selling Price from Business Reports for the same 10 ASINs and compare to the prior 14-day period. Identify any ASIN with declining ASP without a corresponding competitive price range change.
Log into the Repricer.com analytics dashboard and pull floor breach rate for the same 10 ASINs. Flag any ASIN above 10% breach rate.
For any flagged ASIN from steps 1 to 3, apply the diagnosis framework from the combined Buy Box win rate and floor breach rate readings. Identify whether the issue is rule type, floor accuracy, or sourcing cost.
Check EPM utilisation in the Repricer.com event volume data. If peak throughput in any recent period approached your plan's EPM limit, note this as a risk for the next peak trading period.
Schedule a recurring weekly 30-minute review using this 6-metric framework. Add a quarterly deeper review of gross profit per unit per ASIN to confirm floor accuracy across the catalogue.
Frequently Asked Questions
1. How do I know if my Amazon repricing strategy is working?
Track these three metrics together: Buy Box win rate per ASIN versus the equal-share baseline, average selling price trend over 14 days, and floor breach rate from the Repricer.com dashboard. A working repricing strategy produces Buy Box win rates at or above 1.5x equal share per ASIN, stable or rising ASP over 14 days, and a floor breach rate below 10%. Any single metric in isolation is insufficient. Rising Buy Box rate alongside declining ASP indicates the strategy is winning at the cost of margin, which is not a success condition.
2. What metrics should I track to evaluate my repricer performance?
The six key metrics are: Buy Box win rate per ASIN (from Seller Central Business Reports, Featured Offer Percentage), floor breach rate (from Repricer.com dashboard), average selling price trend (from Seller Central), gross profit per unit (calculated from cost inputs and revenue data), suppressed Buy Box rate (from Repricer.com Buy Box status monitoring), and repricing events per hour versus your plan's EPM limit (from Repricer.com event volume data). Review the first four weekly and the latter two monthly, or immediately after any plan or catalogue size change.
3. What is a good Buy Box win rate?
A good Buy Box win rate is specific to each listing and its competitive density. The benchmark is 1.5 times the equal-share baseline: (100 divided by the number of active FBA sellers) multiplied by 1.5. For a 2-seller listing, the performance target is 75%. For a 4-seller listing, it is 37.5%. For an 8-seller listing, it is 18.75%. An overall Buy Box rate across all ASINs is not a meaningful benchmark because the target rate is different for each listing. The win rate benchmarks guide covers the specific thresholds by seller count.
4. How often should I review my repricing analytics?
Weekly for the Buy Box win rate, ASP trend, and floor breach rate on your top 20 to 30 revenue ASINs. Monthly for gross profit per unit and EPM utilisation. Immediately after any repricing configuration change, any Amazon fee change, or any significant competitive change on a key listing. A weekly review of 20 ASINs using the Business Reports and Repricer.com dashboard takes approximately 20 to 30 minutes. The quarterly floor accuracy check across the full catalogue takes 30 to 60 minutes.
Start your 14-day free trial. Access the Repricer.com analytics and reporting dashboard to track floor breach rate, Buy Box status per ASIN, and repricing event volume alongside your Seller Central data.
