How much do you owe your Mom?

Mother’s Day is Sunday, May 13. If you’re still struggling with what to give your mom, the American Coalition for Labor Reparations may have the perfect gift idea for you. The ACFLR , a fictitious organization created by the Mother New York ad agency, has created an online tool to help you calculate exactly how much you owe your mom for giving birth to you, using very precise criteria.

The calculator factors in the amount of time your mom spent in labor, the amount of weight she gained carrying you, the number of alcoholic beverages she missed out on, and the stretch marks she incurred, and even gives you an 80 percent deduction from the total amount if you turned out to be a good child. Check it out here.

So, how much do you owe your Mom?