-6.37% is the change from 157 to 147
Calculation steps:
[( 147 - 157 ) ÷ 157] x 100 = -6.37%
Formula
Percentage change = [(147 - 157) / 157] x 100
Subtract the new number by the original number
147 - 157 = -10
-10 ÷ 157 = -0.06369426751592357
-0.06369426751592357 x 100 = -6.37%