10% is the change from 240 to 264
Calculation steps:
[( 264 - 240 ) ÷ 240] x 100 = 10%
Formula
Percentage change = [(264 - 240) / 240] x 100
Subtract the new number by the original number
264 - 240 = 24
24 ÷ 240 = 0.1
0.1 x 100 = 10%
Example