Only one offer can apply: compare two coupons separately
By Erik Nilsen · Kroni2 min read
When the terms allow only one offer, your child must choose between two complete calculations. You cannot combine the best part of each offer to invent a third price that the shop does not provide.
Give each permitted option its own row
In a hypothetical example, an item costs 80 units and delivery costs 20. Coupon A reduces the item price by 25 per cent. Coupon B takes 10 off the item and provides free delivery. These invented terms explicitly prohibit combining the coupons.
With A, the discount is 80 × 0.25 = 20. The item costs 60, and delivery makes the total 60 + 20 = 80 units.
With B, the item costs 80 − 10 = 70. Delivery costs zero, so the total is 70. B is 10 cheaper despite offering a smaller discount on the item itself.
Combining 25 per cent off with free delivery would produce 60, but that option is unavailable in this example. Cross out that row so it cannot become your child's budget.
Read what each offer covers
A practical snag is seeing “25 per cent” and deciding before including delivery. Ask your child to say the full payment aloud: “I pay 60 for the item and 20 for delivery.” This makes the comparison concrete.
If the item instead cost 160 with the same delivery charge, A would produce 120 + 20 = 140, while B would produce 150. A would then be cheaper. The offer suiting one purchase does not necessarily suit the next.
Check actual terms before use: which items qualify, which costs are reduced, and which offers exclude each other? This exercise promises no particular coupon arrangement. Record only the final amount after an actual purchase occurs.
Ask your family: “Which of the options we can actually choose gives the lowest total?”
Carry the calculation into your family agreement
Kroni can keep track of your child's virtual balance. The app does not transfer money, so any actual purchase is paid for outside it. Agree on what you will record, then check the amount with your child afterwards. Do not deduct a possible cost as though the purchase had already happened. Read about allowance in Kroni.
