20.27% is the change from 824 to 991
Calculation steps:
[( 991 - 824 ) ÷ 824] x 100 = 20.27%
Formula
Percentage change = [(991 - 824) / 824] x 100
Subtract the new number by the original number
991 - 824 = 167
167 ÷ 824 = 0.20266990291262135
0.20266990291262135 x 100 = 20.27%