-3.24% is the change from 680 to 658
Calculation steps:
[( 658 - 680 ) ÷ 680] x 100 = -3.24%
Formula
Percentage change = [(658 - 680) / 680] x 100
Subtract the new number by the original number
658 - 680 = -22
-22 ÷ 680 = -0.03235294117647059
-0.03235294117647059 x 100 = -3.24%