Formula to calculate food and alcohol?

Question

Algorithms

At the moment, there are many calculators for calculating food and alcohol when ordering a wedding or banquet. But I did not find specific formulas for their calculations when creating a calculator. Need for something like this:
The client specifies how many men, women and children will be at a banquet or wedding. Selects favorite dishes, drinks and alcohol. The calculator calculates how many meals as well as drinks/alcohol needed for each person and their total cost.
Can you tell me where I can find such formulas? Maybe some of you already have experience in creating such calculators?

Answer 1

the formula is given by the restaurant, on the website of which you see
it, you can solve it by approximation, if you are too lazy to ask a friend

Answer 2

It will be much easier for you if you collect average data for such calculations. Usually it will be enough to contact several restaurants to clarify their indicators or even to a wedding agency , because they have a complete profile of such events and knowledge of the intricacies is also at a higher level, since they organize everything from "A" to "Z". Naturally, they will prompt not only the content of the "most popular" tables, but also the exact amount of calculation of a unit of alcohol per amount of food.

Answer 3

I don’t know where you can find such a formula, but you can buy good elite alcohol in this store https://www.wine.ua/