363.64% is the change from 55 to 255
Calculation steps:
[( 255 - 55 ) ÷ 55] x 100 = 363.64%
Formula
Percentage change = [(255 - 55) / 55] x 100
Subtract the new number by the original number
255 - 55 = 200
200 ÷ 55 = 3.6363636363636362
3.6363636363636362 x 100 = 363.64%