Cost management: planned vs actual (EV management)

Does GP calculate actual cost, related to the progress of a task?
To get the actual cost ¿is it as simple as TotalCost x %completeness?

The cost is a sum of (resource payment rate * resource load * task duration) for all assigned resources. No other costs are available in GP

So… to clarify…
Would it be possible to split costs across days or months?
Exporting to CSV in Excel?

I am looking to something similar in MS Project, as shown below,

I don’t understand what do you mean when you say “would it be possible”. If you meant to ask if it is possible now then no, sorry. If you meant to ask would it be possible in the future, then I don’t know. It depends on the demand, available time, other plans, and thousand of other things.

“Would it be possible?” meant to ask as “can some expert help me to find a workaround in GP to do?”
But if the feature is not available, no expert can help.
Thank you again, Dmitry!