-10.48% is the change from 649 to 581
Calculation steps:
[( 581 - 649 ) ÷ 649] x 100 = -10.48%
Formula
Percentage change = [(581 - 649) / 649] x 100
Subtract the new number by the original number
581 - 649 = -68
-68 ÷ 649 = -0.10477657935285054
-0.10477657935285054 x 100 = -10.48%