-68.28% is the change from 495 to 157
Calculation steps:
[( 157 - 495 ) ÷ 495] x 100 = -68.28%
Formula
Percentage change = [(157 - 495) / 495] x 100
Subtract the new number by the original number
157 - 495 = -338
-338 ÷ 495 = -0.6828282828282828
-0.6828282828282828 x 100 = -68.28%