Given the following data, what is the total relevant cost for the internal production of 20,000 parts that a company may either make or buy? For make or buy decision making, what is the total relevant internal cost to produce 20,000 parts? $752,000 $872,000 $700,000 $820,000 Given the following data, for the internal production of 20,000 parts? Cost per part from an outside vendor If the company buys the part from the outside vendor, what will be the effect on net operating income? $72,000 increase $20,000 increase $192,000 increase $140,000 increase