13.28% is the change from 821 to 930
Calculation steps:
[( 930 - 821 ) ÷ 821] x 100 = 13.28%
Formula
Percentage change = [(930 - 821) / 821] x 100
Subtract the new number by the original number
930 - 821 = 109
109 ÷ 821 = 0.13276492082825822
0.13276492082825822 x 100 = 13.28%