22.35% is the change from 810 to 991
Calculation steps:
[( 991 - 810 ) ÷ 810] x 100 = 22.35%
Formula
Percentage change = [(991 - 810) / 810] x 100
Subtract the new number by the original number
991 - 810 = 181
181 ÷ 810 = 0.2234567901234568
0.2234567901234568 x 100 = 22.35%