80.32% is the change from 310 to 559
Calculation steps:
[( 559 - 310 ) ÷ 310] x 100 = 80.32%
Formula
Percentage change = [(559 - 310) / 310] x 100
Subtract the new number by the original number
559 - 310 = 249
249 ÷ 310 = 0.8032258064516129
0.8032258064516129 x 100 = 80.32%