-79.59% is the change from 980 to 200
Calculation steps:
[( 200 - 980 ) ÷ 980] x 100 = -79.59%
Formula
Percentage change = [(200 - 980) / 980] x 100
Subtract the new number by the original number
200 - 980 = -780
-780 ÷ 980 = -0.7959183673469388
-0.7959183673469388 x 100 = -79.59%