There is a Taxonomy with names and data fields — it is necessary to multiply by the value entered by the user and display in the fields.

Good day!

There is a Taxonomy
Name Value 1 Value 2 and Value 3
Product1 12.2 13.5 45.1
Product2 46.1 41.7 5.8
Product3 1.8 3.5 0.5
About 100 products.

This name is displayed in a dropdown list
There is a user input field — where a value is entered, for example, 245.
There are 3 fields.

Result1, Result2, Result3.

It is necessary that when selecting from the list, the values from the product are multiplied by the value entered by the user and divided by 100.

For example, Product 2 is selected:

Result1 = (46.1 * 245) / 100

Result2 = (41.7 * 245) / 100

Result3 = (5.8 * 245) / 100

Please advise how to implement this task.