3.44% is the change from 873 to 903
Calculation steps:
[( 903 - 873 ) ÷ 873] x 100 = 3.44%
Formula
Percentage change = [(903 - 873) / 873] x 100
Subtract the new number by the original number
903 - 873 = 30
30 ÷ 873 = 0.03436426116838488
0.03436426116838488 x 100 = 3.44%