1356.14% is the change from 57 to 830
Calculation steps:
[( 830 - 57 ) ÷ 57] x 100 = 1356.14%
Formula
Percentage change = [(830 - 57) / 57] x 100
Subtract the new number by the original number
830 - 57 = 773
773 ÷ 57 = 13.56140350877193
13.56140350877193 x 100 = 1356.14%