2.31% is the change from 824 to 843
Calculation steps:
[( 843 - 824 ) ÷ 824] x 100 = 2.31%
Formula
Percentage change = [(843 - 824) / 824] x 100
Subtract the new number by the original number
843 - 824 = 19
19 ÷ 824 = 0.023058252427184466
0.023058252427184466 x 100 = 2.31%