78.54% is the change from 480 to 857
Calculation steps:
[( 857 - 480 ) ÷ 480] x 100 = 78.54%
Formula
Percentage change = [(857 - 480) / 480] x 100
Subtract the new number by the original number
857 - 480 = 377
377 ÷ 480 = 0.7854166666666667
0.7854166666666667 x 100 = 78.54%