Happy Bundle
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Free tool

Quantity break calculator

Is Buy 2, save 10% a good deal for you? Enter your price and costs to compare the profit on one item with the profit on a tier order.

Your numbers

Order of 1 itemTier order
Shopper pays
Your profit per order
Profit per item, before order costs

How to read it

The calculator compares one order of one item with one order at the tier. Costs per order are paid once either way, which is why tiers often pay even with a discount: you ship one parcel instead of one parcel per item.

It cannot tell you how many shoppers will choose the tier; that depends on your store. Run an A/B test with two discounts to find out: Happy Bundle tests up to four versions of an offer.

An A/B test in Happy Bundle comparing version A (10% and 20% off) with version B (15% and 25% off), marked Too early to tell
An A/B test of two discounts on our demo store.

Questions merchants ask

How do I work out the right discount for a quantity break?

Compare your profit on a single-item order with your profit on a tier order. The deepest discount that still earns at least as much per order is your ceiling; most stores set the tier well below it.

Is this calculator free?

Yes. It runs in your browser and sends nothing anywhere.

Read next

Try Happy Bundle on your store

Install it from the Shopify App Store and create your first offer. Free forever for stores that install now. Every feature, no revenue cap. If paid plans come later, they are only for new stores. Yours stays free.