9.89% is the change from 809 to 889
Calculation steps:
[( 889 - 809 ) ÷ 809] x 100 = 9.89%
Formula
Percentage change = [(889 - 809) / 809] x 100
Subtract the new number by the original number
889 - 809 = 80
80 ÷ 809 = 0.09888751545117429
0.09888751545117429 x 100 = 9.89%