3.89% is the change from 797 to 828
Calculation steps:
[( 828 - 797 ) ÷ 797] x 100 = 3.89%
Formula
Percentage change = [(828 - 797) / 797] x 100
Subtract the new number by the original number
828 - 797 = 31
31 ÷ 797 = 0.03889585947302384
0.03889585947302384 x 100 = 3.89%