-38.19% is the change from 254 to 157
Calculation steps:
[( 157 - 254 ) ÷ 254] x 100 = -38.19%
Formula
Percentage change = [(157 - 254) / 254] x 100
Subtract the new number by the original number
157 - 254 = -97
-97 ÷ 254 = -0.38188976377952755
-0.38188976377952755 x 100 = -38.19%