398.25% is the change from 57 to 284
Calculation steps:
[( 284 - 57 ) ÷ 57] x 100 = 398.25%
Formula
Percentage change = [(284 - 57) / 57] x 100
Subtract the new number by the original number
284 - 57 = 227
227 ÷ 57 = 3.982456140350877
3.982456140350877 x 100 = 398.25%