-16.04% is the change from 187 to 157
Calculation steps:
[( 157 - 187 ) ÷ 187] x 100 = -16.04%
Formula
Percentage change = [(157 - 187) / 187] x 100
Subtract the new number by the original number
157 - 187 = -30
-30 ÷ 187 = -0.16042780748663102
-0.16042780748663102 x 100 = -16.04%