How to Calculate Stacked Discount
What is Stacked Discount?
A stacked discount calculator applies multiple percentage discounts sequentially. Each discount reduces the already-reduced price — not the original — so stacking yields a smaller saving than adding the percentages together.
Formula
- D1
- D1 value — Variable used in the calculation
Step-by-Step Guide
- 1After Discount 1: Price₁ = Original × (1 − D1%)
- 2After Discount 2: Price₂ = Price₁ × (1 − D2%)
- 3Each step compounds on the previous reduced price
- 4A 20% then 10% discount equals 28% off total — NOT 30%
Worked Examples
Frequently Asked Questions
What is Stacked Discount?
A stacked discount calculator applies multiple percentage discounts sequentially. Each discount reduces the already-reduced price — not the original — so stacking yields a smaller saving than adding the percentages together
How accurate is the Stacked Discount calculator?
The calculator uses the standard published formula for stacked discount. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Stacked Discount calculator use?
This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Stacked Discount calculator use?
The core formula is: After Discount 1: Price₁ = Original × (1 − D1%). Each step in the calculation is shown so you can verify the result manually.
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