Please tell me the logic for calculating line item tax amount on PO

Summary:

When creating BI, I need to understand the logic of each item value.

In particular, I didn't know whether taxes were multiplied by LIST_PRICE, UNIT_PRICE by the tax rate, or systematically calculated from a completely different value.

Content (please ensure you mask any confidential information):

The "Total Tax" displayed on the purchase order screen is calculated from which column's value in which table?

Is it multiplying "LIST_PRICE" in PO_LINES_ALL table by the tax rate obtained from "TAX_NAME"?

Version (include the version you are using, if applicable):

23D

Code Snippet (add any code snippets that support your topic, if applicable):