78.91% is the change from 479 to 857
Calculation steps:
[( 857 - 479 ) ÷ 479] x 100 = 78.91%
Formula
Percentage change = [(857 - 479) / 479] x 100
Subtract the new number by the original number
857 - 479 = 378
378 ÷ 479 = 0.7891440501043842
0.7891440501043842 x 100 = 78.91%