9.99% is the change from 811 to 892
Calculation steps:
[( 892 - 811 ) ÷ 811] x 100 = 9.99%
Formula
Percentage change = [(892 - 811) / 811] x 100
Subtract the new number by the original number
892 - 811 = 81
81 ÷ 811 = 0.0998766954377312
0.0998766954377312 x 100 = 9.99%