-24.53% is the change from 685 to 517
Calculation steps:
[( 517 - 685 ) ÷ 685] x 100 = -24.53%
Formula
Percentage change = [(517 - 685) / 685] x 100
Subtract the new number by the original number
517 - 685 = -168
-168 ÷ 685 = -0.24525547445255474
-0.24525547445255474 x 100 = -24.53%