-34.28% is the change from 773 to 508
Calculation steps:
[( 508 - 773 ) ÷ 773] x 100 = -34.28%
Formula
Percentage change = [(508 - 773) / 773] x 100
Subtract the new number by the original number
508 - 773 = -265
-265 ÷ 773 = -0.3428201811125485
-0.3428201811125485 x 100 = -34.28%