336.36% is the change from 55 to 240
Calculation steps:
[( 240 - 55 ) ÷ 55] x 100 = 336.36%
Formula
Percentage change = [(240 - 55) / 55] x 100
Subtract the new number by the original number
240 - 55 = 185
185 ÷ 55 = 3.3636363636363638
3.3636363636363638 x 100 = 336.36%