304.03% is the change from 124 to 501
Calculation steps:
[( 501 - 124 ) ÷ 124] x 100 = 304.03%
Formula
Percentage change = [(501 - 124) / 124] x 100
Subtract the new number by the original number
501 - 124 = 377
377 ÷ 124 = 3.0403225806451615
3.0403225806451615 x 100 = 304.03%