-25.18% is the change from 679 to 508
Calculation steps:
[( 508 - 679 ) ÷ 679] x 100 = -25.18%
Formula
Percentage change = [(508 - 679) / 679] x 100
Subtract the new number by the original number
508 - 679 = -171
-171 ÷ 679 = -0.25184094256259204
-0.25184094256259204 x 100 = -25.18%