Question

Work out the percentage change when a price of £50 is decreased to £40.

Answer 1

So the formula for price change is amount of change / original price * 100
50-40
= 10
10/50*100
= 1/5*100
= 20%

Answer 2

20%

Explanation:

Initial price: £50

Decreased price: £40

The difference: £50-£40= £10

Percentage change: £10/£50*100%= 20 %