Mike's Mountain Bikes manufactures part #822 for use in its bikes. The costs per unit for 20,000 units of the part are as follows: direct material $6, direct labor $30, variable overhead $12, fixed overhead $16. Kami Manufacturing wants to sell 20,000 units of the part for $60 per unit. Mike's is only interested in buying the part from Kami if the savings total $250,000. If the part is outsourced, Mike's will realize savings of $9 per part for fixed overhead and will release space that could be leased for additional revenue.

What is Mike's relevant cost of manufacturing the part in this decision?