-71.32% is the change from 631 to 181
Calculation steps:
[( 181 - 631 ) ÷ 631] x 100 = -71.32%
Formula
Percentage change = [(181 - 631) / 631] x 100
Subtract the new number by the original number
181 - 631 = -450
-450 ÷ 631 = -0.7131537242472267
-0.7131537242472267 x 100 = -71.32%