7025% is the change from 12 to 855
Calculation steps:
[( 855 - 12 ) ÷ 12] x 100 = 7025%
Formula
Percentage change = [(855 - 12) / 12] x 100
Subtract the new number by the original number
855 - 12 = 843
843 ÷ 12 = 70.25
70.25 x 100 = 7025%
Example