Life skills · Grades 6–9
Percentage discounts
Find the discount, then subtract it from the original price. Ignore taxes unless given.
The key idea
Find the discount, then subtract it from the original price. Ignore taxes unless given.
sale price = original × (1 − rate/100)
Worked examples
An item costs 460 currency units before a 50% discount. Find the sale price before any tax.
460 × (1 − 50/100) = 230
230
An item costs 1900 currency units before a 30% discount. Find the sale price before any tax.
1900 × (1 − 30/100) = 1330
1330
Try it yourself
An item costs 1340 currency units before a 5% discount. Find the sale price before any tax.
An item costs 140 currency units before a 50% discount. Find the sale price before any tax.
Check your understanding
Answers and marking notes
- 1273
1340 × (1 − 5/100) = 1273
- 70
140 × (1 − 50/100) = 70
Learning preview · teacher review required. Grade bands are approximate, not official curriculum alignment.