If I got a notice that my wages are being garnished by the state of wisconsin department of revenue, where can I find the total amount that is owed and for what?

You will need to ask the state of Wisconsin.

The best resource is the State of Wisconsin, here is a link to contact them: https://www.revenue.wi.gov/Pages/ContactUs/home.aspx

Included here is a link for questions about a garnishment: https://www.revenue.wi.gov/Pages/FAQS/ise-delinq.aspx