✦Money & Shopping
What is the price after a discount?
Find a sale price or work backwards to the original price, then see exactly how percentages produce the answer.
Formula: €120.00 × (1 − 25 ÷ 100) = €90.00. You save €30.00. To recover an original price from a sale price, divide by 0.75.
✦Calculate it
Enter your values
€120.00 × (1 − 25 ÷ 100) = €90.00You save €30.00. To recover an original price from a sale price, divide by 0.75.
02Understand it
Why this calculation works
sale price = original price × (1 − discount ÷ 100). The calculation above updates with your own values, so the answer is never a disconnected black box.
Worked example
A €120 item reduced by 25% costs €90.
Assumptions and edge cases
- The percentage applies once to the listed price.
- Taxes or fees are not included unless they are already in the price.
03Practise it
Learn the mathematics
This tool connects to the authoritative Goofer Math skill graph. Study the concept, then practise with the same validated exercise architecture used by the full game.
04Master it
Continue in Math From Counting to Calculus
Keep your understanding moving through the connected 155-skill journey. Your progress stays intact.
Related real-life calculations
Questions people ask
How do I calculate 20% off?
Multiply the price by 0.80, because 100% − 20% = 80%.
Can I find the original price?
Yes. Divide the sale price by 1 minus the discount rate.