-50.78% is the change from 579 to 285
Calculation steps:
[( 285 - 579 ) ÷ 579] x 100 = -50.78%
Formula
Percentage change = [(285 - 579) / 579] x 100
Subtract the new number by the original number
285 - 579 = -294
-294 ÷ 579 = -0.5077720207253886
-0.5077720207253886 x 100 = -50.78%