-86% is the change from 1000 to 140
Calculation steps:
[( 140 - 1000 ) ÷ 1000] x 100 = -86%
Formula
Percentage change = [(140 - 1000) / 1000] x 100
Subtract the new number by the original number
140 - 1000 = -860
-860 ÷ 1000 = -0.86
-0.86 x 100 = -86%