Net Needed — 5★ reviews/ratings that must be accepted to reach the target average.
Sign-up — total submitted so enough survive filtering (Net ÷ Success %). What you pay for.
Success % — share Amazon accepts; the rest are filtered out, so we plan for more.
Review:Sales Cap % — daily additions as a % of organic sales, to keep velocity natural.
Pace/Day — safe additions per day = Cap % × Daily Sales.
Days — time to complete at the safe pace = Sign-up ÷ Pace/Day.
Ratings Mix % — split of star-only ratings vs written reviews (100% = all ratings).
Invoice — cashflow billed to the client: rebate + fees, before Amazon money-back.
Net Cost — actual cost = Invoice − money back from Amazon when units sell.
Recency β — models Amazon up-weighting fresh ratings (~1.1–1.8× in our Keepa data); β>1 ⇒ fewer needed. 1.0 = conservative.
Confidence m — anchors thin-count ASINs to the 4.3 category mean so low-review products need a realistic amount. 0 = off.