-86.36% is the change from 286 to 39
Calculation steps:
[( 39 - 286 ) ÷ 286] x 100 = -86.36%
Formula
Percentage change = [(39 - 286) / 286] x 100
Subtract the new number by the original number
39 - 286 = -247
-247 ÷ 286 = -0.8636363636363636
-0.8636363636363636 x 100 = -86.36%