461.4% is the change from 57 to 320
Calculation steps:
[( 320 - 57 ) ÷ 57] x 100 = 461.4%
Formula
Percentage change = [(320 - 57) / 57] x 100
Subtract the new number by the original number
320 - 57 = 263
263 ÷ 57 = 4.614035087719298
4.614035087719298 x 100 = 461.4%