How to make automatic price calculation in Variable product?

Question

WordPress

Hello!
Friends, this is the situation.
I am looking for a woo plugin for automatic price calculation in a variable product.
I want the price of the variation to be added to the main price, or at least written as a plus at the bottom.
As it is now:
the price of the product is 100r additional
color +200r
another size +100r
As a result: it should be 400r when choosing all variations, and +300 should fall to the main sum of 100+300=
400 for one variation.
I would like the price to change dynamically and to the main price, prices for variations were added ...
I once had such a plugin, but I don’t remember the name point-blank.
Help find, or somehow make such a price calculation.
Thank you very much in advance!