-0.58% is the change from 684 to 680
Calculation steps:
[( 680 - 684 ) ÷ 684] x 100 = -0.58%
Formula
Percentage change = [(680 - 684) / 684] x 100
Subtract the new number by the original number
680 - 684 = -4
-4 ÷ 684 = -0.005847953216374269
-0.005847953216374269 x 100 = -0.58%