-90.56% is the change from 286 to 27
Calculation steps:
[( 27 - 286 ) ÷ 286] x 100 = -90.56%
Formula
Percentage change = [(27 - 286) / 286] x 100
Subtract the new number by the original number
27 - 286 = -259
-259 ÷ 286 = -0.9055944055944056
-0.9055944055944056 x 100 = -90.56%