247.74% is the change from 155 to 539
Calculation steps:
[( 539 - 155 ) ÷ 155] x 100 = 247.74%
Formula
Percentage change = [(539 - 155) / 155] x 100
Subtract the new number by the original number
539 - 155 = 384
384 ÷ 155 = 2.47741935483871
2.47741935483871 x 100 = 247.74%