4.05% is the change from 839 to 873
Calculation steps:
[( 873 - 839 ) ÷ 839] x 100 = 4.05%
Formula
Percentage change = [(873 - 839) / 839] x 100
Subtract the new number by the original number
873 - 839 = 34
34 ÷ 839 = 0.04052443384982122
0.04052443384982122 x 100 = 4.05%