How to respect WooCommerce product custom fields when adding to cart?

Question

WordPress

Hello everyone :)
The essence of the question: I use custom fields for simple WooCommerce products. Created them using standard engine methods. On the site itself, on the product page, I wrote a small order calculator that calculates the total amount of the selected (there are checkboxes) attributes and displays the result. The values ​​of these attributes are taken from those very arbitrary fields. How can I add the ability to pass these parameters to the order itself (basket)? Now only the base price is transferred to the cart.