71.04% is the change from 480 to 821
Calculation steps:
[( 821 - 480 ) ÷ 480] x 100 = 71.04%
Formula
Percentage change = [(821 - 480) / 480] x 100
Subtract the new number by the original number
821 - 480 = 341
341 ÷ 480 = 0.7104166666666667
0.7104166666666667 x 100 = 71.04%