-34.67% is the change from 773 to 505
Calculation steps:
[( 505 - 773 ) ÷ 773] x 100 = -34.67%
Formula
Percentage change = [(505 - 773) / 773] x 100
Subtract the new number by the original number
505 - 773 = -268
-268 ÷ 773 = -0.34670116429495473
-0.34670116429495473 x 100 = -34.67%