3.08% is the change from 813 to 838
Calculation steps:
[( 838 - 813 ) ÷ 813] x 100 = 3.08%
Formula
Percentage change = [(838 - 813) / 813] x 100
Subtract the new number by the original number
838 - 813 = 25
25 ÷ 813 = 0.03075030750307503
0.03075030750307503 x 100 = 3.08%