8.13% is the change from 812 to 878
Calculation steps:
[( 878 - 812 ) ÷ 812] x 100 = 8.13%
Formula
Percentage change = [(878 - 812) / 812] x 100
Subtract the new number by the original number
878 - 812 = 66
66 ÷ 812 = 0.0812807881773399
0.0812807881773399 x 100 = 8.13%