503.51% is the change from 57 to 344
Calculation steps:
[( 344 - 57 ) ÷ 57] x 100 = 503.51%
Formula
Percentage change = [(344 - 57) / 57] x 100
Subtract the new number by the original number
344 - 57 = 287
287 ÷ 57 = 5.035087719298246
5.035087719298246 x 100 = 503.51%