How · The conversion math
Where the impact actually comes from
Here is how we'd achieve it: sitewide conversion is the product of four conditional stage rates — so improvements compound, they don't add.
Sitewide conversion
1.250% → 1.375%
+10.0% relative · +1,325 orders from conversion
Allocation method
Set three stage uplifts; checkout completion is solved to hit the target exactly.
Edit baseline stage rates
Baseline CVR = 0.5 × 0.08 × 0.5 × 0.625 = 1.2500%
Website visits
Sessions: +20% organic search (30% of visits) = +60,000 visits
1,000,000
1,060,000+60,000
Product viewers
Product Discovery: 50.00% → 51.00% (+2.0%)
500,000 · drop-off 500,000
540,600+40,600 · drop-off 519,400
Add-to-cart sessions
Consideration / Add to Cart: 8.00% → 8.24% (+3.0%)
40,000 · drop-off 460,000
44,545+4,545 · drop-off 496,055
Checkout sessions
Cart to Checkout: 50.00% → 51.50% (+3.0%)
20,000 · drop-off 20,000
22,941+2,941 · drop-off 21,605
Converting sessions
Checkout to Purchase: 62.50% → 63.53% (+1.7%)
12,500 · drop-off 7,500
14,575+2,075 · drop-off 8,366
Incremental orders by stage
Sequential waterfall applied in fixed order: Discovery → Add to Cart → Checkout → Purchase. Contributions sum exactly to the total.