-26.62% is the change from 680 to 499
Calculation steps:
[( 499 - 680 ) ÷ 680] x 100 = -26.62%
Formula
Percentage change = [(499 - 680) / 680] x 100
Subtract the new number by the original number
499 - 680 = -181
-181 ÷ 680 = -0.2661764705882353
-0.2661764705882353 x 100 = -26.62%