How it's calculated
NC = (P × c + B) × a × (1 − f) net commission per sale
CPS max = NC − F/N break-even cost per sale
CPS target = NC × (1 − m) − F/N keeps margin m
CPC max = CPS × o × r per ad click
CPM max = CPC target × CTR × 1000
Your CPS = your CPC ÷ (o × r)
Needed o×r = your CPC ÷ CPS target
Product list, with click share q and buy rate r per product:
sales per ad click = o × Σ qᵢ·rᵢ
NC blended = Σ qᵢ·rᵢ·NCᵢ ÷ Σ qᵢ·rᵢ
Ad platforms can't see the purchase because it happens on the merchant's site. Measure r and a from network-confirmed sales tagged with a SubID per campaign, and treat pending sales as pending × a until approval lands.