23.88% is the change from 800 to 991
Calculation steps:
[( 991 - 800 ) ÷ 800] x 100 = 23.88%
Formula
Percentage change = [(991 - 800) / 800] x 100
Subtract the new number by the original number
991 - 800 = 191
191 ÷ 800 = 0.23875
0.23875 x 100 = 23.88%