342.59% is the change from 54 to 239
Calculation steps:
[( 239 - 54 ) ÷ 54] x 100 = 342.59%
Formula
Percentage change = [(239 - 54) / 54] x 100
Subtract the new number by the original number
239 - 54 = 185
185 ÷ 54 = 3.425925925925926
3.425925925925926 x 100 = 342.59%