-55.41% is the change from 157 to 70
Calculation steps:
[( 70 - 157 ) ÷ 157] x 100 = -55.41%
Formula
Percentage change = [(70 - 157) / 157] x 100
Subtract the new number by the original number
70 - 157 = -87
-87 ÷ 157 = -0.554140127388535
-0.554140127388535 x 100 = -55.41%