-10.96% is the change from 648 to 577
Calculation steps:
[( 577 - 648 ) ÷ 648] x 100 = -10.96%
Formula
Percentage change = [(577 - 648) / 648] x 100
Subtract the new number by the original number
577 - 648 = -71
-71 ÷ 648 = -0.1095679012345679
-0.1095679012345679 x 100 = -10.96%