670.91% is the change from 55 to 424
Calculation steps:
[( 424 - 55 ) ÷ 55] x 100 = 670.91%
Formula
Percentage change = [(424 - 55) / 55] x 100
Subtract the new number by the original number
424 - 55 = 369
369 ÷ 55 = 6.709090909090909
6.709090909090909 x 100 = 670.91%