How to calculate a discount
Discounted price = List price × (1 − Discount)
Savings = List price − Discounted price
Discount rate (%) = (1 − Discounted ÷ List) × 100
Examples
| List price | Discount | Discounted | Savings |
|---|---|---|---|
| ₺1,200 | 25% | ₺900 | ₺300 |
| ₺800 | 10% | ₺720 | ₺80 |
| ₺2,500 | 40% | ₺1,500 | ₺1,000 |
Stacked discounts don't add up
20% off plus an extra 10% is 28%, not 30%: 1 − (0.80 × 0.90) = 0.28. Keep this in mind when stacking coupons.
Planning a discount campaign
- Check how much the discount cuts your margin first — profit margin calculator.
- The pre-discount price must be one you actually charged before the campaign; consumer law prohibits misleading discount claims.
- Setting the free-shipping threshold slightly above your average order lifts basket size.
- Split coupon codes by channel to measure which campaign works.
Campaigns and coupons with Tecof
Instead of running numbers one by one, manage the business from one panel: Tecof brings your website, online store, payments (Tecof POS, iyzico, PayTR, Craftgate and bank virtual POS), shipping and campaign tools together. Generate your site from a prompt, refine it in Studio and publish on the free plan.
In Tecof's e-commerce stack you define coupons and campaigns from the panel; see e-commerce.




