-70.74% is the change from 680 to 199
Calculation steps:
[( 199 - 680 ) ÷ 680] x 100 = -70.74%
Formula
Percentage change = [(199 - 680) / 680] x 100
Subtract the new number by the original number
199 - 680 = -481
-481 ÷ 680 = -0.7073529411764706
-0.7073529411764706 x 100 = -70.74%