223.23% is the change from 155 to 501
Calculation steps:
[( 501 - 155 ) ÷ 155] x 100 = 223.23%
Formula
Percentage change = [(501 - 155) / 155] x 100
Subtract the new number by the original number
501 - 155 = 346
346 ÷ 155 = 2.232258064516129
2.232258064516129 x 100 = 223.23%