21.24% is the change from 824 to 999
Calculation steps:
[( 999 - 824 ) ÷ 824] x 100 = 21.24%
Formula
Percentage change = [(999 - 824) / 824] x 100
Subtract the new number by the original number
999 - 824 = 175
175 ÷ 824 = 0.21237864077669902
0.21237864077669902 x 100 = 21.24%