Modi Brothers · Amazon.in seller economics

Flow Margin

Fee-adjusted margin calculator for CRI pumps — plug in a selling price and see the real payout after Amazon's referral, closing, and fulfillment fees, plus replacement cost.

Product

₹
28%
Buying price C = LP × (1 − s) = ₹0
kg, packed

Fees

%
Defaults to 6.5% (your category) — type a different rate if it ever changes

Selling price

₹

Fulfilment

Returns

Off = "10 days Replacement" (non-returnable) — the norm for this pump category
5%

Payout & margin

Net margin per unit
₹00%
Healthy
Selling price (P)₹0
− Referral fee (6.5%)₹0
− Closing fee₹0
− Fulfilment fee₹0
= Amazon payout₹0
− Buying price (C)₹0
= Cash margin (pre-GST-settlement)₹0
− Net GST payable to govt₹0
− Replacement/return cost₹0
= True net margin₹0
Breakeven price
₹0
15% margin needs
₹0
20% margin needs
₹0
Net GST payable = (P − C) × 18/118 — tax on the value you added, not on the full sale price. Amazon's fee-GST is already a wash (they charge it, you credit it back), so it never enters this line or the margin above. Assumes C is GST-inclusive and you claim input credit properly.

Margin vs. selling price