-79.4% is the change from 1000 to 206
Calculation steps:
[( 206 - 1000 ) ÷ 1000] x 100 = -79.4%
Formula
Percentage change = [(206 - 1000) / 1000] x 100
Subtract the new number by the original number
206 - 1000 = -794
-794 ÷ 1000 = -0.794
-0.794 x 100 = -79.4%