Topics · Edexcel GCSE Maths (1MA1)
When you know the price after a change, the percentage was taken from a number you have not seen. Try it.
In a sale, all prices are reduced by 15%.
A coat costs £68 in the sale.
Work out the price of the coat before the sale.
See why
What was the coat's price before the sale?
85% of £70 is £59.50. The coat costs £68.
Now a fresh one
The value of a house went up by 6% last year.
The house is now worth £238 500.
Work out the value of the house a year ago.
Learn it properly
Where it comes up in the exam
- Specification R9: find the original value after a percentage change, and use multipliers.
- On both tiers.
- Pearson's examiners report students subtracting the percentage from the final amount instead of dividing by the multiplier.