-76.16% is the change from 839 to 200
Calculation steps:
[( 200 - 839 ) ÷ 839] x 100 = -76.16%
Formula
Percentage change = [(200 - 839) / 839] x 100
Subtract the new number by the original number
200 - 839 = -639
-639 ÷ 839 = -0.7616209773539928
-0.7616209773539928 x 100 = -76.16%