3.58% is the change from 839 to 869
Calculation steps:
[( 869 - 839 ) ÷ 839] x 100 = 3.58%
Formula
Percentage change = [(869 - 839) / 839] x 100
Subtract the new number by the original number
869 - 839 = 30
30 ÷ 839 = 0.03575685339690107
0.03575685339690107 x 100 = 3.58%