-12.17% is the change from 649 to 570
Calculation steps:
[( 570 - 649 ) ÷ 649] x 100 = -12.17%
Formula
Percentage change = [(570 - 649) / 649] x 100
Subtract the new number by the original number
570 - 649 = -79
-79 ÷ 649 = -0.12172573189522343
-0.12172573189522343 x 100 = -12.17%