-67.41% is the change from 270 to 88
Calculation steps:
[( 88 - 270 ) ÷ 270] x 100 = -67.41%
Formula
Percentage change = [(88 - 270) / 270] x 100
Subtract the new number by the original number
88 - 270 = -182
-182 ÷ 270 = -0.674074074074074
-0.674074074074074 x 100 = -67.41%