Question 1

How do I calculate a percentage discount?

Accepted Answer

Multiply the original price by the discount percentage to get the amount saved, then subtract it from the price. A 25% discount on $120 saves $30, so you pay $90.

Question 2

How do I work out the final sale price quickly?

Accepted Answer

Final price = original price × (1 − discount ÷ 100). For 25% off, that's price × 0.75. The calculator does this instantly and also shows the exact amount you save.

Question 3

Can I add two discounts together?

Accepted Answer

Stacked discounts apply one after another, not added. A 20% then 10% off isn't 30% off — it's 0.8 × 0.9 = 0.72, i.e. 28% off the original. Apply each discount in turn to be accurate.

Question 4

Does this include sales tax?

Accepted Answer

No — this shows the pre-tax sale price. Use the Sales Tax or VAT calculator to add tax to the discounted amount for the final checkout total.

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