-8.65% is the change from 636 to 581
Calculation steps:
[( 581 - 636 ) ÷ 636] x 100 = -8.65%
Formula
Percentage change = [(581 - 636) / 636] x 100
Subtract the new number by the original number
581 - 636 = -55
-55 ÷ 636 = -0.08647798742138364
-0.08647798742138364 x 100 = -8.65%