1.21% is the change from 824 to 834
Calculation steps:
[( 834 - 824 ) ÷ 824] x 100 = 1.21%
Formula
Percentage change = [(834 - 824) / 824] x 100
Subtract the new number by the original number
834 - 824 = 10
10 ÷ 824 = 0.012135922330097087
0.012135922330097087 x 100 = 1.21%