-76.74% is the change from 860 to 200
Calculation steps:
[( 200 - 860 ) ÷ 860] x 100 = -76.74%
Formula
Percentage change = [(200 - 860) / 860] x 100
Subtract the new number by the original number
200 - 860 = -660
-660 ÷ 860 = -0.7674418604651163
-0.7674418604651163 x 100 = -76.74%