Product options calculation difficulties

I have a product that costs 300 for purchase of the product for 3 days
As a product optionI have set up if 2 people want this same, so the price will be double (+ 100%)
But then I have a second product option where you can choose the number of days.
The choices are 6 or 9 days.
6 days will be 200% increase and 9 days will be 500%
Then calculation works.

However, if you choose to order for 3, 4 or 5 persons, calculation will be incorrect.
Proposed solution?

Hello Nicholas,

I am sorry but I am a bit confused about the problem that you have. Please submit a new ticket to EShop category to send me the your site information so I can help you to check.

Sincerely, Giang

Forget about this, I figures it out.
The option I wanted was not possible.
I therefore changed the the two options into just one option, to make this calculation work.

That's OK Nicholas!

Sincerely, Giang