-10.63% is the change from 649 to 580
Calculation steps:
[( 580 - 649 ) ÷ 649] x 100 = -10.63%
Formula
Percentage change = [(580 - 649) / 649] x 100
Subtract the new number by the original number
580 - 649 = -69
-69 ÷ 649 = -0.10631741140215717
-0.10631741140215717 x 100 = -10.63%