Suggestion for dependant fields

Can someone suggest me what is the best approach for dependant fields..

In my case, I want my input total_price to be dependant to:

room_id, which is later will have to get a price attribute from room model, required
discount, numeric input, not required
additional_services (with repeater), has name and price attribute, can be 0 items or not required.

So later, the input price will be a calculated data of those above 3 inputs.
Currently the form is in resource class..

I'm using filament v2.

Solution

thanks for your response before..
I've decided to calculate what's in repeater in afterCreate method..