-0.64% is the change from 157 to 156
Calculation steps:
[( 156 - 157 ) ÷ 157] x 100 = -0.64%
Formula
Percentage change = [(156 - 157) / 157] x 100
Subtract the new number by the original number
156 - 157 = -1
-1 ÷ 157 = -0.006369426751592357
-0.006369426751592357 x 100 = -0.64%