-12.97% is the change from 663 to 577
Calculation steps:
[( 577 - 663 ) ÷ 663] x 100 = -12.97%
Formula
Percentage change = [(577 - 663) / 663] x 100
Subtract the new number by the original number
577 - 663 = -86
-86 ÷ 663 = -0.1297134238310709
-0.1297134238310709 x 100 = -12.97%