99.64% is the change from 280 to 559
Calculation steps:
[( 559 - 280 ) ÷ 280] x 100 = 99.64%
Formula
Percentage change = [(559 - 280) / 280] x 100
Subtract the new number by the original number
559 - 280 = 279
279 ÷ 280 = 0.9964285714285714
0.9964285714285714 x 100 = 99.64%