13.68% is the change from 819 to 931
Calculation steps:
[( 931 - 819 ) ÷ 819] x 100 = 13.68%
Formula
Percentage change = [(931 - 819) / 819] x 100
Subtract the new number by the original number
931 - 819 = 112
112 ÷ 819 = 0.13675213675213677
0.13675213675213677 x 100 = 13.68%