-21.99% is the change from 773 to 603
Calculation steps:
[( 603 - 773 ) ÷ 773] x 100 = -21.99%
Formula
Percentage change = [(603 - 773) / 773] x 100
Subtract the new number by the original number
603 - 773 = -170
-170 ÷ 773 = -0.21992238033635186
-0.21992238033635186 x 100 = -21.99%