-27.06% is the change from 680 to 496
Calculation steps:
[( 496 - 680 ) ÷ 680] x 100 = -27.06%
Formula
Percentage change = [(496 - 680) / 680] x 100
Subtract the new number by the original number
496 - 680 = -184
-184 ÷ 680 = -0.27058823529411763
-0.27058823529411763 x 100 = -27.06%