-42.59% is the change from 486 to 279
Calculation steps:
[( 279 - 486 ) ÷ 486] x 100 = -42.59%
Formula
Percentage change = [(279 - 486) / 486] x 100
Subtract the new number by the original number
279 - 486 = -207
-207 ÷ 486 = -0.42592592592592593
-0.42592592592592593 x 100 = -42.59%