13.15% is the change from 821 to 929
Calculation steps:
[( 929 - 821 ) ÷ 821] x 100 = 13.15%
Formula
Percentage change = [(929 - 821) / 821] x 100
Subtract the new number by the original number
929 - 821 = 108
108 ÷ 821 = 0.1315468940316687
0.1315468940316687 x 100 = 13.15%