472.22% is the change from 54 to 309
Calculation steps:
[( 309 - 54 ) ÷ 54] x 100 = 472.22%
Formula
Percentage change = [(309 - 54) / 54] x 100
Subtract the new number by the original number
309 - 54 = 255
255 ÷ 54 = 4.722222222222222
4.722222222222222 x 100 = 472.22%