-9.2% is the change from 641 to 582
Calculation steps:
[( 582 - 641 ) ÷ 641] x 100 = -9.2%
Formula
Percentage change = [(582 - 641) / 641] x 100
Subtract the new number by the original number
582 - 641 = -59
-59 ÷ 641 = -0.09204368174726989
-0.09204368174726989 x 100 = -9.2%