-35.03% is the change from 157 to 102
Calculation steps:
[( 102 - 157 ) ÷ 157] x 100 = -35.03%
Formula
Percentage change = [(102 - 157) / 157] x 100
Subtract the new number by the original number
102 - 157 = -55
-55 ÷ 157 = -0.3503184713375796
-0.3503184713375796 x 100 = -35.03%