-74.96% is the change from 631 to 158
Calculation steps:
[( 158 - 631 ) ÷ 631] x 100 = -74.96%
Formula
Percentage change = [(158 - 631) / 631] x 100
Subtract the new number by the original number
158 - 631 = -473
-473 ÷ 631 = -0.7496038034865293
-0.7496038034865293 x 100 = -74.96%