429.09% is the change from 55 to 291
Calculation steps:
[( 291 - 55 ) ÷ 55] x 100 = 429.09%
Formula
Percentage change = [(291 - 55) / 55] x 100
Subtract the new number by the original number
291 - 55 = 236
236 ÷ 55 = 4.290909090909091
4.290909090909091 x 100 = 429.09%