221.94% is the change from 155 to 499
Calculation steps:
[( 499 - 155 ) ÷ 155] x 100 = 221.94%
Formula
Percentage change = [(499 - 155) / 155] x 100
Subtract the new number by the original number
499 - 155 = 344
344 ÷ 155 = 2.2193548387096773
2.2193548387096773 x 100 = 221.94%