-24.15% is the change from 679 to 515
Calculation steps:
[( 515 - 679 ) ÷ 679] x 100 = -24.15%
Formula
Percentage change = [(515 - 679) / 679] x 100
Subtract the new number by the original number
515 - 679 = -164
-164 ÷ 679 = -0.24153166421207659
-0.24153166421207659 x 100 = -24.15%