-13.53% is the change from 680 to 588
Calculation steps:
[( 588 - 680 ) ÷ 680] x 100 = -13.53%
Formula
Percentage change = [(588 - 680) / 680] x 100
Subtract the new number by the original number
588 - 680 = -92
-92 ÷ 680 = -0.13529411764705881
-0.13529411764705881 x 100 = -13.53%