2.72% is the change from 808 to 830
Calculation steps:
[( 830 - 808 ) ÷ 808] x 100 = 2.72%
Formula
Percentage change = [(830 - 808) / 808] x 100
Subtract the new number by the original number
830 - 808 = 22
22 ÷ 808 = 0.027227722772277228
0.027227722772277228 x 100 = 2.72%