Price-range "from-to" | Override class-ac-product-variable.php

Hello,

i´m using WooCommerce in germany and here it is common to offer the bottom-price like this -> “ab 29,90€”

On a variable product, actually looks like this -> 29,90€-49,90€.
So i need on all variable products only the bottom-price displayed.

I changed this in class-wc-product-variable.php on line 256 and it works fine. But with an update i got lost all my changes! I´m using a child-theme, but it won´t work to override any files on /woocommerce/includes/…

Any Ideas how i can do this?

Thanks 🙂

Juergen

https://wordpress.org/plugins/woocommerce/