-48.24% is the change from 539 to 279
Calculation steps:
[( 279 - 539 ) ÷ 539] x 100 = -48.24%
Formula
Percentage change = [(279 - 539) / 539] x 100
Subtract the new number by the original number
279 - 539 = -260
-260 ÷ 539 = -0.48237476808905383
-0.48237476808905383 x 100 = -48.24%