On the delivery note it is possible to add that the animal haven't been a part of the vaccination program of the delivery note. Add the column "Treated", in this field there is a drop-down menu where you can choose "Not vaccinated". 

The price calculated on the animal is from the vaccination program, whether or not the animal is vaccinated. 

In the field "Complaint" it is possible to regulate the price of the animal and also add a cause for the reduction in price.