-4.55% is the change from 286 to 273
Calculation steps:
[( 273 - 286 ) ÷ 286] x 100 = -4.55%
Formula
Percentage change = [(273 - 286) / 286] x 100
Subtract the new number by the original number
273 - 286 = -13
-13 ÷ 286 = -0.045454545454545456
-0.045454545454545456 x 100 = -4.55%