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Marketplace Momentum Calculator

Every marketplace ranking algorithm weights recommendation-driven sales differently than organic sales. This calculator shows you exactly how co-purchase edges and fee structures shift your ranking momentum — and why eight recommendation sales can outrank fifty organic ones.

Ranking Mechanics
Momentum Model
Enter your product price, fee structures, and sales mix. The calculator shows how each sale type contributes to your ranking weight.
Ranking Weight Breakdown
Organic revenue$195.00
Organic ranking weight (fees)$19.50
Recommendation revenue$312.00
Recommendation ranking weight (fees)$93.60
Summary
Total ranking weight$113.10
Recommendation share of ranking82.8%
Net revenue after all fees $393.90
Interpretation Guide
What the Numbers Mean
Ranking Weight — Total platform fees your product generates. Most marketplace algorithms sort by this number, not by sales count or revenue. Higher fees per sale = more ranking per transaction.
Recommendation Share — What percentage of your ranking comes from recommendation-driven sales. Above 70% means the co-purchase graph is doing more for your visibility than all your organic efforts combined.
Voluntary Fee Boost — Additional percentage you can volunteer on discovery-attributed and recommendation sales only — organic sales are unaffected. Only worth pulling after you have some recommendation volume — a higher percentage of zero is still zero.
Net Revenue — What you actually keep after all platform fees and boosts. The tradeoff is clear: higher fees mean better ranking but lower margins. The goal is to use ranking momentum to reach a volume where margins matter less.
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