Hi there,
In our experience, incorrect cart totals are usually caused by one of these things:
- Frequently it is a plugin conflict with another plugin with price effects. We would advise to please try deactivating all other site plugins and switch to the Storefront theme, to see if the issue still persists.
- It could also be using a non-standard cart. For example there are some themes such as Divi which have their own cart widget, rather than the Woo cart. Please try creating a new page and add the [woocommerce_cart] shortcode to it, and then check if that cart page shows correct totals.
If none of these can help solve it, we would also be glad to assist further. Since I notice your site uses the B2BKing Pro version, you can open a ticket with us at https://webwizards.ticksy.com and we can help check this for you in more detail there.
