-25.84% is the change from 685 to 508
Calculation steps:
[( 508 - 685 ) ÷ 685] x 100 = -25.84%
Formula
Percentage change = [(508 - 685) / 685] x 100
Subtract the new number by the original number
508 - 685 = -177
-177 ÷ 685 = -0.2583941605839416
-0.2583941605839416 x 100 = -25.84%