-53.68% is the change from 136 to 63
Calculation steps:
[( 63 - 136 ) ÷ 136] x 100 = -53.68%
Formula
Percentage change = [(63 - 136) / 136] x 100
Subtract the new number by the original number
63 - 136 = -73
-73 ÷ 136 = -0.5367647058823529
-0.5367647058823529 x 100 = -53.68%