340% is the change from 55 to 242
Calculation steps:
[( 242 - 55 ) ÷ 55] x 100 = 340%
Formula
Percentage change = [(242 - 55) / 55] x 100
Subtract the new number by the original number
242 - 55 = 187
187 ÷ 55 = 3.4
3.4 x 100 = 340%
Example