Question

Work out the percentage change when a price of £20 is decreased to £3.
.

Answer 1

85% decrease

Explanation:

The percentage change is the change fraction multiplied by 100%.

percent change = change / original × 100%

= (3 -20)/20 × 100%

= -17/20 × 100% = -85%

A decrease from £20 to £3 is a change of -85%.