-76.1% is the change from 657 to 157
Calculation steps:
[( 157 - 657 ) ÷ 657] x 100 = -76.1%
Formula
Percentage change = [(157 - 657) / 657] x 100
Subtract the new number by the original number
157 - 657 = -500
-500 ÷ 657 = -0.76103500761035
-0.76103500761035 x 100 = -76.1%