-8.81% is the change from 636 to 580
Calculation steps:
[( 580 - 636 ) ÷ 636] x 100 = -8.81%
Formula
Percentage change = [(580 - 636) / 636] x 100
Subtract the new number by the original number
580 - 636 = -56
-56 ÷ 636 = -0.0880503144654088
-0.0880503144654088 x 100 = -8.81%