Is 10% off worth it? Know the break-even before you discount.
Evenline turns any price change into the conversion lift it needs just to stand still — from your real product cost, fees, shipping and refunds. Then it sizes the experiment and helps you judge the result honestly.
How much more conversion a $40 → $36 discount needs to keep today’s profit per visitor in the worked example.
Cost per item from Shopify, refunds from your orders, and defaults flagged until you confirm them.
Evenline plans and reviews. Your experiment tool runs the test — nothing touches your storefront.
From question to defensible decision
Versioned cost baselines with per-field sources and a full history.
Break-even lift, profit per visitor, a live curve and a price ladder.
Frozen snapshot, sample size and run time from your traffic, decision rules, printable brief.
CSV import, allocation check, interval chart, quality gates and a locked decision log.