10.11% is the change from 821 to 904
Calculation steps:
[( 904 - 821 ) ÷ 821] x 100 = 10.11%
Formula
Percentage change = [(904 - 821) / 821] x 100
Subtract the new number by the original number
904 - 821 = 83
83 ÷ 821 = 0.10109622411693057
0.10109622411693057 x 100 = 10.11%