-42.79% is the change from 680 to 389
Calculation steps:
[( 389 - 680 ) ÷ 680] x 100 = -42.79%
Formula
Percentage change = [(389 - 680) / 680] x 100
Subtract the new number by the original number
389 - 680 = -291
-291 ÷ 680 = -0.4279411764705882
-0.4279411764705882 x 100 = -42.79%