Hello @VBRWC ,
If you're needing to see what your current costs are, you can log in and find them on your My Account page. If you want to compare your current plan's pricing and features with the other plan, you can do some from within your account on the Plans & Pricing page after logging in.
If you're needing monthly pricing for the website builder, it comes included in the Email and Email Plus plans. If you're needing pricing on domains, that will largely depend on the domain type and availability, which you can find when selecting your domain.