9.3% is the change from 839 to 917
Calculation steps:
[( 917 - 839 ) ÷ 839] x 100 = 9.3%
Formula
Percentage change = [(917 - 839) / 839] x 100
Subtract the new number by the original number
917 - 839 = 78
78 ÷ 839 = 0.09296781883194279
0.09296781883194279 x 100 = 9.3%