496.36% is the change from 55 to 328
Calculation steps:
[( 328 - 55 ) ÷ 55] x 100 = 496.36%
Formula
Percentage change = [(328 - 55) / 55] x 100
Subtract the new number by the original number
328 - 55 = 273
273 ÷ 55 = 4.963636363636364
4.963636363636364 x 100 = 496.36%