-71.4% is the change from 1000 to 286
Calculation steps:
[( 286 - 1000 ) ÷ 1000] x 100 = -71.4%
Formula
Percentage change = [(286 - 1000) / 1000] x 100
Subtract the new number by the original number
286 - 1000 = -714
-714 ÷ 1000 = -0.714
-0.714 x 100 = -71.4%