20.56% is the change from 822 to 991
Calculation steps:
[( 991 - 822 ) ÷ 822] x 100 = 20.56%
Formula
Percentage change = [(991 - 822) / 822] x 100
Subtract the new number by the original number
991 - 822 = 169
169 ÷ 822 = 0.20559610705596107
0.20559610705596107 x 100 = 20.56%