8.67% is the change from 911 to 990
Calculation steps:
[( 990 - 911 ) ÷ 911] x 100 = 8.67%
Formula
Percentage change = [(990 - 911) / 911] x 100
Subtract the new number by the original number
990 - 911 = 79
79 ÷ 911 = 0.0867178924259056
0.0867178924259056 x 100 = 8.67%