See how much extra you must sell to make a discount, bundle or free-shipping offer pay for itself.
Prepared by ecomca · rates awaiting CA reviewUpdated Calculated in your browser; copied links include your figures
What the customer pays for one unit at full price.
Presets are today’s common rates. Use “Custom rate” for any other rate, including special rates and rates for earlier periods.
Purchase price plus freight in, excl. GST if you claim ITC.
What you pay the courier. Blank = none.
Boxes, tape, inserts. Blank = none.
Payment-gateway % for your own site, or marketplace commission %.
Ad spend ÷ orders. Blank = none.
At full price, before the offer.
A flat fee per order on top of the %, e.g. a closing fee. Blank = none.
The shipping fee customers pay you today. Blank or 0 = free shipping already.
Offer 1: 20% off
92.1%more orders
You need 92.1% more orders to earn the same: 1,922 a month instead of 1,000. per order ₹386 → ₹201.
| ₹ per order | Today | Offer 1: 20% off | Offer 2: Buy 2 get 1 free | Offer 3: 2 for ₹1,799 |
|---|---|---|---|---|
| Customer pays (incl. GST) | ₹999 | ₹799 | ₹1,998 | ₹1,799 |
| Units in the order | 1 | 1 | 3 | 2 |
| Net revenue (excl. GST) | ₹951 | ₹761 | ₹1,903 | ₹1,713 |
| Landed cost | −₹300 | −₹300 | −₹900 | −₹600 |
| Packaging and shipping | −₹90 | −₹90 | −₹90 | −₹90 |
| Channel fee | −₹25 | −₹20 | −₹50 | −₹45 |
| CM2 | ₹536 | ₹351 | ₹863 | ₹978 |
| Marketing | −₹150 | −₹150 | −₹150 | −₹150 |
| CM3 per order | ₹386 | ₹201 | ₹713 | ₹828 |
| CM3 % of net revenue | 40.6% | 26.4% | 37.5% | 48.3% |
| Orders a month to earn the same | 1,000 | 1,922 | 543 | 467 |
| Change in orders | +92.1% | −45.8% | −53.3% | |
| Units a month | 1,000 | 1,922 | 1,627 | 934 |
Rounded to the nearest rupee; orders and units are rounded up to whole numbers. Costs are shown as negatives. No shipping is charged to customers today.
A discount, bundle or free-shipping offer changes what each order leaves after costs. This calculator shows how many orders you then need to earn the same contribution (CM3) as today — up to three offers side by side.
It also finds the order value at which free shipping pays for itself, and the lowest price that keeps a target margin on a new product.
Free-shipping threshold. Each extra item adds price ÷ (1 + GST) − fee % × price − landed cost. Items needed = (CM3 per order today + packaging + shipping + fixed fee + marketing) ÷ that amount; the threshold is items needed × price.
Pricing. Minimum price = (landed cost + packaging + shipping + fixed fee + marketing) ÷ ((1 − target %) ÷ (1 + GST) − fee %). If the bottom of that sum is zero or less, no price reaches the target.
A ₹999 product with 5% GST. Landed cost ₹300, shipping ₹70 and packaging ₹20 per order, a 2.5% payment-gateway fee and ₹150 of marketing per order. 1,000 orders a month today, no shipping charged to customers. Each order leaves a CM3 of ₹386.45, or ₹3,86,454 a month.
The customer pays ₹799.20. Net revenue ₹761.14, fee ₹19.98, CM2 ₹351.16, CM3 ₹201.16. To earn today’s ₹3,86,450 a month: 3,86,450 ÷ 201.16 = 1,921.1 orders, so 1,922 orders, 92.1% more.
The customer pays ₹1,998 for 3 units. Net revenue ₹1,902.86, fee ₹49.95, CM2 ₹862.91, CM3 ₹712.91. 3,86,450 ÷ 712.91 = 542.1 orders, so 543 orders (45.8% fewer), or 1,627 units.
Net revenue ₹1,713.33, fee ₹44.98, CM2 ₹978.36, CM3 ₹828.36. 3,86,450 ÷ 828.36 = 466.5 orders, so 467 orders (53.3% fewer), or 934 units.
The customer pays ₹849. Net revenue ₹808.57, fee ₹21.23, CM2 ₹397.35, CM3 ₹247.35. 3,86,450 ÷ 247.35 = 1,562.4 orders, so 1,563 orders, 56.2% more.
The same product. Today customers buy 1 item per order and pay ₹59 shipping on it.
The same costs, aiming to keep 20% of net revenue as CM3.
Our MIS & Reporting service tracks contribution by channel, SKU and campaign every month, so you can see what a sale actually earned.
Often, because a bundle spreads the per-order costs — shipping, packaging, the fixed part of the fee and marketing — over more units, while a straight discount comes entirely out of your margin. Compare both here with your own costs: a “2 for ₹1,799” bundle can need fewer orders than today, while 20% off the same product can need almost twice as many.
The discount comes off the price, but your costs per order stay the same, so the whole discount comes out of your contribution. If an order leaves ₹386 after all variable costs and a discount takes ₹185 of that away, each order now leaves about ₹201, and you need nearly twice the orders to earn the same.
Open Advanced options and enter the price point and the fee below it under “fee changes below a price point”. The calculator applies the lower fee to any offer whose price per unit falls below that point and marks it with an asterisk in the comparison table. Check the current fee structure with each marketplace before the sale.
Use “Free-shipping threshold”. It finds the order value at which an order with free shipping leaves the same contribution as today’s typical order with paid shipping. Setting the threshold at or above that figure means the larger orders pay for the shipping you no longer charge.
No. The figures assume every order is delivered. Returned and undelivered orders reduce what each order leaves, so if your RTO rate is meaningful, work out its cost first and add it to your shipping cost per order.
They are not included. The calculator compares the contribution after variable costs and marketing (CM3), which is what pays for fixed costs. An offer that earns the same CM3 as today leaves your fixed costs covered exactly as before.
We reconcile marketplace settlements, GST and TDS for D2C and marketplace sellers every month. Share your reports and we will walk you through what we find.
Indicative estimate for general information only, based on the assumptions shown on this page. It is not professional advice. Rates on this page have not yet been verified by a CA.