-28.07% is the change from 773 to 556
Calculation steps:
[( 556 - 773 ) ÷ 773] x 100 = -28.07%
Formula
Percentage change = [(556 - 773) / 773] x 100
Subtract the new number by the original number
556 - 773 = -217
-217 ÷ 773 = -0.2807244501940492
-0.2807244501940492 x 100 = -28.07%