But I want whole numbers.
What do you mean "no point"?
This is a creative process.
When studying questionnaires, most of them give whole numbers with rounding.
This is exactly what I wanted the result of the kata to look like.

Updated the description in accordance with your wishes.
As I understand, the question was related specifically to the description, in this case.

How do you think the specification should be transformed to make it clear?
The condition states that the percentage is presented as a whole number without rounding.

ok i changed description/condition, solution and test stories. removed rounding.

If we use the "decimal" module, would it be the right solution for this version of the kata in your opinion?

What documentation?
The method is built into the standard Python interpreter package.