-93.5% is the change from 631 to 41
Calculation steps:
[( 41 - 631 ) ÷ 631] x 100 = -93.5%
Formula
Percentage change = [(41 - 631) / 631] x 100
Subtract the new number by the original number
41 - 631 = -590
-590 ÷ 631 = -0.9350237717908082
-0.9350237717908082 x 100 = -93.5%