15.78% is the change from 811 to 939
Calculation steps:
[( 939 - 811 ) ÷ 811] x 100 = 15.78%
Formula
Percentage change = [(939 - 811) / 811] x 100
Subtract the new number by the original number
939 - 811 = 128
128 ÷ 811 = 0.15782983970406905
0.15782983970406905 x 100 = 15.78%