-9.28% is the change from 636 to 577
Calculation steps:
[( 577 - 636 ) ÷ 636] x 100 = -9.28%
Formula
Percentage change = [(577 - 636) / 636] x 100
Subtract the new number by the original number
577 - 636 = -59
-59 ÷ 636 = -0.09276729559748427
-0.09276729559748427 x 100 = -9.28%