-74.31% is the change from 615 to 158
Calculation steps:
[( 158 - 615 ) ÷ 615] x 100 = -74.31%
Formula
Percentage change = [(158 - 615) / 615] x 100
Subtract the new number by the original number
158 - 615 = -457
-457 ÷ 615 = -0.7430894308943089
-0.7430894308943089 x 100 = -74.31%