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FBA sell-through rate - How is it calculated (on Amazon)?
FBA sell-through rate - How do Amazon calculate it?
I’m currently at 1.2 (considered Fair).
Would be good to get some insight ready for 2022 - since this is the major factor effecting my IPI score. All other factors are light green or green
IPI score currently 469 - so trying to get it over the 500 at the next evaluation
1 reply
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Summary
How is the sell-through rate calculated?
Sell-through rate is updated daily and looks at past 90 days of shipped units and average inventory over that same period. We encourage you to try to maintain a sell-through rate in the green (or “good” rating) year round.
Your FBA sell-through rate is your sold and shipped units over the past 90 days divided by the average number of units in stock in our fulfillment centers during that period. We calculate your available average units by taking a snapshot of your inventory levels today and 30, 60, and 90 days ago. For example: Let’s say that you shipped 120 units in the past 90 days and had an average of 80 units available during that period. Your sell-through rate would be 120 divided by 80, which equals 1.5, as shown below.
Total units sold (cumulative) in the past 90 days 120 units
| Date | Today | 30 days ago | 60 days ago | 90 days ago |
|---|---|---|---|---|
| Inventory available | 80 units | 150 units |
(new shipment of 150 units received)|40 units|50 units|
Average available inventory = (50 + 40 + 150 + 80) / 4 = 80 units
Sell-through rate = 120/80 = 1.5
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