Our online shop sells both wholesale and retail. The WooPrice calculator works fine with retail but unfortunately does not work with wholesale. I contacted the developer of the Wholesale Pricing addon who were not able to help from their side but gave me the following information to send to you with the hope that you may be able top tweak your side to make it compatible.
The WooCommerce Wholesale Prices Premium plugin saves wholesale data in wp_postmeta with these meta keys:
{wholesale role}_wholesale_price
{wholesale role}_wholesale_minimum_order_quantity
{wholesale role}_wholesale_order_quantity_step
{wholesale role}_have_wholesale_price
By default, if you have the wholesale role key as *wholesale_customer*, the meta key for the wholesale price should be wholesale_customer_wholesale_price. You should be able to get the wholesale price of the product from this meta key.
I thank you in advance for your help.
Regards
Andrew Chugg