-42.22% is the change from 135 to 78
Calculation steps:
[( 78 - 135 ) ÷ 135] x 100 = -42.22%
Formula
Percentage change = [(78 - 135) / 135] x 100
Subtract the new number by the original number
78 - 135 = -57
-57 ÷ 135 = -0.4222222222222222
-0.4222222222222222 x 100 = -42.22%