Stacked Discount Calculator

With stacked (sequential) discounts each applies to the price after the previous one, so rates multiply instead of adding. 20% + 10% is 28%, not 30%. This tool applies up to five discounts in order and gives the final price, total savings and the combined (effective) rate of all steps.

Formulas

• Price₁ = list × (1 − d₁ ÷ 100)
• Price₂ = Price₁ × (1 − d₂ ÷ 100) … Price₅
• Total savings = list − final price
• Effective discount (%) = (1 − final ÷ list) × 100; 0 if the list price is 0
• The simple sum of rates is shown for comparison

Intermediate steps are not rounded; only results are rounded to the kuruş (HALF_UP).

Example 1: list 1,000 TRY, 20% + 10%: 800 → 720.00 TRY; savings 280.00 TRY; effective discount 28.00% (simple sum 30%).

Example 2: list 1,000 TRY, 20% + 10% + 5%: 800 → 720 → 684.00 TRY; savings 316.00 TRY; effective discount 31.60% (simple sum 35%).

Example 3: five steps 20%, 10%, 5%, 5%, 2% give a final price of 636.80 TRY, savings of 363.20 TRY and an effective discount of 36.32% (simple sum 42%).

How to read the result: the final price is what you pay after all discounts. The effective discount rate shows the real impact of several discounts on the list price as one percentage; use it to compare offers. The simple sum is for comparison only and is not a real discount; with two or more discounts the effective rate is always smaller than the simple sum.

For VAT on discounted invoices see the discounted invoice tool.