0.85% is the change from 824 to 831
Calculation steps:
[( 831 - 824 ) ÷ 824] x 100 = 0.85%
Formula
Percentage change = [(831 - 824) / 824] x 100
Subtract the new number by the original number
831 - 824 = 7
7 ÷ 824 = 0.00849514563106796
0.00849514563106796 x 100 = 0.85%