-87.41% is the change from 135 to 17
Calculation steps:
[( 17 - 135 ) ÷ 135] x 100 = -87.41%
Formula
Percentage change = [(17 - 135) / 135] x 100
Subtract the new number by the original number
17 - 135 = -118
-118 ÷ 135 = -0.8740740740740741
-0.8740740740740741 x 100 = -87.41%