Profit calculators for offers
Twelve calculators for the decisions that move an order's margin: gifts, subscription margins, payback and intro offers, bundles, free shipping, which option to lead with, contribution margin per order, break-even discounts, average order value, shipping by weight and zone, and card fees. Each runs the margin engine from Offer Suite's own code, shows its formula, and walks through a worked example.
Gift with purchase
A $40.00 order with a gift, at 3.0% conversion
Revenue $40.00 to contribution margin $10.91 (27.3%)
Revenue
$40.00
Cost of goods
−$16.00
Pick and pack
−$1.18
Extra picks
−$0.20
Packaging
−$0.50
Shipping label
−$7.50
Card fee per order
−$0.30
Gift fulfilment
−$0.25
Refunds
−$2.00
Card processing
−$1.16
Contribution margin
$10.91
| Step | Grain | Amount |
|---|---|---|
| Revenue | – | $40.00 |
| Cost of goods | per unit | −$16.00 |
| Pick and pack | per order | −$1.18 |
| Extra picks | per unit | −$0.20 |
| Packaging | per parcel | −$0.50 |
| Shipping label | per parcel | −$7.50 |
| Card fee per order | per order | −$0.30 |
| Gift fulfilment | per unit | −$0.25 |
| Refunds | percent | −$2.00 |
| Card processing | percent | −$1.16 |
| Contribution margin | – | $10.91 |
- Contribution margin without the gift
- $15.36
- With the gift
- $10.91
- What the gift costs per order
- $4.45
- Profit per visitor, without / with
- $0.46 / $0.33
- Lift a $4 gift needs+40.8%Gift with purchase profit calculatorWhat a free gift costs per order, after its unit cost, its extra pick and its handling, and how much conversion it has to add to pay for itself.
- First order vs renewal$3.79 / $11.68Subscription margin: first order vs renewalMargin on a subscription's first order and on each renewal, and the expected profit per subscriber over time at your retention, against a one-time buyer.
- CAC paid back, with churnmonth 10Subscription payback calculatorHow much a subscriber's first order loses against what you paid to acquire them, how many renewals it takes to earn that back with churn, and in which month.
- Best per visitor: free product$0.54Which subscription intro offer earns more?Subscribe and save, a discount on the first order, a free trial or a free product: each as a cohort of subscribers with the same costs, ranked on profit per visitor after acquisition.
- Best per visitor, 3 units$0.91Which offer option earns more per visitor?Compare up to three offer options on profit per visitor, margin per order times conversion, and see the conversion lift each one needs to match the best.
- Lowest common threshold that can pay$75.00Free shipping threshold calculatorPrice a free-shipping threshold with the shipping you give away on orders that already reach it, and the share of smaller orders that must top up to pay for it.
- Margin, single vs bundle$21.81 / $48.06Bundle pricing calculatorPrice a bundle against a single unit, one-time and subscribed, with the shipping and pick costs it saves, and the conversion it can lose and still earn as much.
- Kept from a $77.00 order$37.24Contribution margin per order calculatorWhat one order keeps after product cost, pick and pack, packaging, the label, card fees and a refund reserve, as an amount, a share of revenue and the ROAS your ads break even at.
- Lift 15.0% off needs+56.3%Break-even discount calculatorHow many more buyers a discount has to bring to earn what full price earns, with the discount taken out of the order's margin after shipping, fees and refunds.
- Average order value$41.73Average order value calculatorAverage order value from revenue and orders, what the average order keeps after per-order costs, and what adding a few dollars to it is worth a month.
- 15 oz to zone 5$8.24Shipping cost by weight and zoneWhat a parcel's label costs in each of USPS's nine zones at its weight, from USPS Ground Advantage's commercial prices effective 4 October 2026, and what each zone leaves of the order.
- Fee on a $60.00 order, Basic$2.04Shopify Payments fee calculatorThe card fee on one order and on a month of orders under each Shopify plan, at the United States rates Shopify's pricing page prints, and what a higher plan's rate saves.
- A $72.00 bundle keeps: own store / Amazon FBA$29.63 / $26.97Amazon FBA, FBM and TikTok Shop fees against your own storeWhat one bundle keeps in your own store, on Amazon FBA, on Amazon FBM and on TikTok Shop, with each marketplace's referral and fulfilment fees as it published them for the United States, read 13 October 2026.
- Break-even ROAS, a mix of 3 options2.35Break-even ROAS and CPA calculatorThe return on ad spend and the cost per order your ads break even at, for each option you sell and for the mix of them, weighted by the dollars each option brings in.
- A view earns / keeps, with upsells$0.77 / $0.32Upsell funnel calculator: profit per viewA funnel from page view to purchase with three upsell and downsell offers after it, each priced with its costs: take rates in, earnings per view and profit per view out.