-69.93% is the change from 286 to 86
Calculation steps:
[( 86 - 286 ) ÷ 286] x 100 = -69.93%
Formula
Percentage change = [(86 - 286) / 286] x 100
Subtract the new number by the original number
86 - 286 = -200
-200 ÷ 286 = -0.6993006993006993
-0.6993006993006993 x 100 = -69.93%