5. Kenmore offers a 20/15/10 discounts on its horizontal freezer unit which is sold at its affiliated retailers for $1450. d. What is the Net Cost Rate Factor (NCRF) using the (product-of-comp method)? e. What is the invoice price using this NCRF? f. Calculate the Net Cost Rate Factor (NCRF) if the invoice price is $798. g. What is the invoice price if the Single Equivalent Discount (SED) is 50%