-2.45% is the change from 286 to 279
Calculation steps:
[( 279 - 286 ) ÷ 286] x 100 = -2.45%
Formula
Percentage change = [(279 - 286) / 286] x 100
Subtract the new number by the original number
279 - 286 = -7
-7 ÷ 286 = -0.024475524475524476
-0.024475524475524476 x 100 = -2.45%