9.9% is the change from 818 to 899
Calculation steps:
[( 899 - 818 ) ÷ 818] x 100 = 9.9%
Formula
Percentage change = [(899 - 818) / 818] x 100
Subtract the new number by the original number
899 - 818 = 81
81 ÷ 818 = 0.09902200488997555
0.09902200488997555 x 100 = 9.9%