> For the complete documentation index, see [llms.txt](https://docs.bossithq.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bossithq.com/discounts/discount-block-web-app-only/meals-and-proportional-exclusion.md).
# Meals and Proportional Exclusion
When a meal doesn't have discount block enabled but contains an alcohol item or a discount-blocked item, the exclusion isn't all-or-nothing for the whole meal — only that item's fair share of the meal's price is excluded. The rest of the meal remains eligible.
The excluded share is worked out from the products' standalone prices (the price each item would cost if purchased on its own):
Excluded value = (excluded item's standalone price ÷ sum of all standalone prices) × meal price
**For example:** a "Family Feast" meal has a final basket price of €8.25, made up of four items with standalone prices of €6.20, €1.00, €1.00, and €2.00 — where the €6.20 item is the excluded one (alcohol or a discount-blocked product):
Excluded value = 6.20 ÷ (6.20 + 1.00 + 1.00 + 2.00) × 8.25 = €5.01
That leaves \~€3.24 of the meal eligible. A 20% discount then applies only to that eligible portion: €3.24 × 0.20 ≈ €0.72.
The same proportional split is used for points and vouchers when alcohol is the excluded item. One difference: a "blocks discount" product only affects discounts — it doesn't reduce the value available for points or vouchers. A customer can still earn or spend points, or use a voucher, on the full eligible amount even when a discount code can't touch part of it.
When a customer uses both a discount and a voucher on the same order, the discount is applied first. The voucher's value is then calculated based on the discounted total.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.bossithq.com/discounts/discount-block-web-app-only/meals-and-proportional-exclusion.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.