6675% is the change from 12 to 813
Calculation steps:
[( 813 - 12 ) ÷ 12] x 100 = 6675%
Formula
Percentage change = [(813 - 12) / 12] x 100
Subtract the new number by the original number
813 - 12 = 801
801 ÷ 12 = 66.75
66.75 x 100 = 6675%
Example