-47.13% is the change from 157 to 83
Calculation steps:
[( 83 - 157 ) ÷ 157] x 100 = -47.13%
Formula
Percentage change = [(83 - 157) / 157] x 100
Subtract the new number by the original number
83 - 157 = -74
-74 ÷ 157 = -0.4713375796178344
-0.4713375796178344 x 100 = -47.13%