10.51% is the change from 828 to 915
Calculation steps:
[( 915 - 828 ) ÷ 828] x 100 = 10.51%
Formula
Percentage change = [(915 - 828) / 828] x 100
Subtract the new number by the original number
915 - 828 = 87
87 ÷ 828 = 0.10507246376811594
0.10507246376811594 x 100 = 10.51%