338.53% is the change from 109 to 478
Calculation steps:
[( 478 - 109 ) ÷ 109] x 100 = 338.53%
Formula
Percentage change = [(478 - 109) / 109] x 100
Subtract the new number by the original number
478 - 109 = 369
369 ÷ 109 = 3.385321100917431
3.385321100917431 x 100 = 338.53%