-85.93% is the change from 135 to 19
Calculation steps:
[( 19 - 135 ) ÷ 135] x 100 = -85.93%
Formula
Percentage change = [(19 - 135) / 135] x 100
Subtract the new number by the original number
19 - 135 = -116
-116 ÷ 135 = -0.8592592592592593
-0.8592592592592593 x 100 = -85.93%