3.16% is the change from 790 to 815
Calculation steps:
[( 815 - 790 ) ÷ 790] x 100 = 3.16%
Formula
Percentage change = [(815 - 790) / 790] x 100
Subtract the new number by the original number
815 - 790 = 25
25 ÷ 790 = 0.03164556962025317
0.03164556962025317 x 100 = 3.16%