-47.06% is the change from 136 to 72
Calculation steps:
[( 72 - 136 ) ÷ 136] x 100 = -47.06%
Formula
Percentage change = [(72 - 136) / 136] x 100
Subtract the new number by the original number
72 - 136 = -64
-64 ÷ 136 = -0.47058823529411764
-0.47058823529411764 x 100 = -47.06%