Real-World Guide: How Discounts, Taxes, and Inflation are Calculated
Math isn't just for school. See how percentage formulas control your shopping, taxes, bills, and salary in the real world.
Quickly find the final price and total savings on any percentage discount. Perfect for sales, coupons, and seasonal promos.
Calculate Your Final Price and Savings
To find your discount savings, multiply the original price by the discount percentage (e.g., $100 × 0.20 = $20 off). Then, subtract that amount from the original price to get the final cost. The Discount Calculator shows your total savings and the final price you will pay instantly.
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Discount Formula:
Final Price = Original Price × (1 − Discount% ÷ 100)A discount is a reduction in price expressed as a percentage off the original amount. Use this calculator to see the final price and the exact savings instantly.
Final Price = Original Price × (1 - Discount% ÷ 100)
Example: $100 item with 20% off → $100 × 0.80 = $80
Black Friday: 30% off $150 jacket
Result: $105.00 final price (Save $45.00)
Clearance: 60% off $200 shoes
Result: $80.00 final price (Save $120.00)
Student discount: 15% off $80 textbook
Result: $68.00 final price (Save $12.00)
Summer sale: 25% off $300 electronics
Result: $225.00 final price (Save $75.00)
Multiply the original price by the discount percentage and divide by 100. Then subtract this amount from the original price. Formula: Final Price = Original Price × (1 − Discount% ÷ 100).
20% off $50 equals $40. The discount is $10 ($50 × 0.20), so you pay $50 − $10 = $40.
Apply discounts sequentially, not together. Example: 20% off then another 20% off is 36% total, not 40%. Calculate the first discount, then apply the second to the new price.
It shows the discounted price only. Tax applies to the final discounted price. Multiply the final price by (1 + tax rate) to get the total with tax.
Math isn't just for school. See how percentage formulas control your shopping, taxes, bills, and salary in the real world.
Discover how to calculate discounts, final prices, and total savings in seconds. Learn step-by-step formulas with examples for shoppers and retailers.
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