-71.95% is the change from 631 to 177
Calculation steps:
[( 177 - 631 ) ÷ 631] x 100 = -71.95%
Formula
Percentage change = [(177 - 631) / 631] x 100
Subtract the new number by the original number
177 - 631 = -454
-454 ÷ 631 = -0.7194928684627575
-0.7194928684627575 x 100 = -71.95%