303.23% is the change from 124 to 500
Calculation steps:
[( 500 - 124 ) ÷ 124] x 100 = 303.23%
Formula
Percentage change = [(500 - 124) / 124] x 100
Subtract the new number by the original number
500 - 124 = 376
376 ÷ 124 = 3.032258064516129
3.032258064516129 x 100 = 303.23%