-68.15% is the change from 157 to 50
Calculation steps:
[( 50 - 157 ) ÷ 157] x 100 = -68.15%
Formula
Percentage change = [(50 - 157) / 157] x 100
Subtract the new number by the original number
50 - 157 = -107
-107 ÷ 157 = -0.6815286624203821
-0.6815286624203821 x 100 = -68.15%