-24.89% is the change from 679 to 510
Calculation steps:
[( 510 - 679 ) ÷ 679] x 100 = -24.89%
Formula
Percentage change = [(510 - 679) / 679] x 100
Subtract the new number by the original number
510 - 679 = -169
-169 ÷ 679 = -0.24889543446244478
-0.24889543446244478 x 100 = -24.89%