3.26% is the change from 828 to 855
Calculation steps:
[( 855 - 828 ) ÷ 828] x 100 = 3.26%
Formula
Percentage change = [(855 - 828) / 828] x 100
Subtract the new number by the original number
855 - 828 = 27
27 ÷ 828 = 0.03260869565217391
0.03260869565217391 x 100 = 3.26%