-73.73% is the change from 118 to 31
Calculation steps:
[( 31 - 118 ) ÷ 118] x 100 = -73.73%
Formula
Percentage change = [(31 - 118) / 118] x 100
Subtract the new number by the original number
31 - 118 = -87
-87 ÷ 118 = -0.7372881355932204
-0.7372881355932204 x 100 = -73.73%