-13.68% is the change from 680 to 587
Calculation steps:
[( 587 - 680 ) ÷ 680] x 100 = -13.68%
Formula
Percentage change = [(587 - 680) / 680] x 100
Subtract the new number by the original number
587 - 680 = -93
-93 ÷ 680 = -0.13676470588235295
-0.13676470588235295 x 100 = -13.68%
Example