Buy two get one free reduces the revenue earned per supplied unit. It does not reduce the number of products that must be purchased and packed. The BOGO Calculator separates paid units, free units and repeated promotion groups so the offer’s cost follows what actually leaves the store.
Define one promotion group
Enter two paid units and one free unit in a group. Use PKR 1,000 as the normal price per paid unit and PKR 500 as product cost per supplied unit. Add packaging PKR 50 and shipping PKR 100 for each group.
For one group, the customer pays PKR 2,000 and receives three units. Product cost is PKR 1,500; packaging and shipping add PKR 150. With no selling fee, included profit is PKR 350.
Read the effective unit price
Revenue divided by the three supplied units gives an effective price of about PKR 666.67 each. Compared with buying three units at PKR 1,000, the offer represents a 33.33% discount across the supplied products.
That discount describes the product price comparison. It does not say that profit also falls by exactly one third. The free unit has its own full product cost, while shipping and packaging follow the group assumptions you entered.
Repeating the group repeats its fulfilment costs
For two groups, six units are supplied and revenue becomes PKR 4,000. Product cost plus the two groups’ packaging and shipping is PKR 3,300. With an illustrative 10% selling fee, another PKR 400 is deducted, leaving PKR 300 profit.
This tool treats the entered packaging and shipping as per group amounts. If two groups travel in one parcel with one courier charge, adjust the allocation deliberately rather than assuming the tool automatically merges parcels.
Check stock consumption before launching
A campaign producing 100 paid groups consumes more than the paid unit count. Reserve stock using all supplied units, including the free ones. Stock Runway Calculator can estimate the coverage of that available stock at an entered daily usage rate.
A profitable sample group does not establish whether the promotion attracts enough extra orders to beat the ordinary offer. Compare its contribution and advertising budget separately. Bundle Price & Profit Calculator handles sets with different items, while Maximum CPA Calculator can check the acquisition allowance for the resulting offer. Keep the group definition visible in the promotion record.