9.54% is the change from 839 to 919
Calculation steps:
[( 919 - 839 ) ÷ 839] x 100 = 9.54%
Formula
Percentage change = [(919 - 839) / 839] x 100
Subtract the new number by the original number
919 - 839 = 80
80 ÷ 839 = 0.09535160905840286
0.09535160905840286 x 100 = 9.54%