4.65% is the change from 839 to 878
Calculation steps:
[( 878 - 839 ) ÷ 839] x 100 = 4.65%
Formula
Percentage change = [(878 - 839) / 839] x 100
Subtract the new number by the original number
878 - 839 = 39
39 ÷ 839 = 0.04648390941597139
0.04648390941597139 x 100 = 4.65%