wis 7777.51(1f)(d) (d) A transaction that includes taxable and nontaxable products, if the seller’s purchase price or the sales price of the taxable products is no greater than 10 percent77.53(16) (16) If the purchase, rental or lease of tangible personal property, or items, property, or goods under s. 77.52 (1) (b), , or , or service subject to the tax imposed by this section