-75% is the change from 240 to 60
Calculation steps:
[( 60 - 240 ) ÷ 240] x 100 = -75%
Formula
Percentage change = [(60 - 240) / 240] x 100
Subtract the new number by the original number
60 - 240 = -180
-180 ÷ 240 = -0.75
-0.75 x 100 = -75%
Example