Lounsberry Inc. regularly uses material O55P and currently has in stock 375 liters of the material, for which it paid $2,700 several weeks ago. If this were to be sold as is on the open market as surplus material, it would fetch $6.35 per liter. New stocks of the material can be purchased on the open market for $7.20 per liter, but it must be purchased in lots of 1,000 liters. You've been asked to determine the relevant cost of 900 liters of the material to be used in a job for a customer. What is the relevant cost of the 900 liters of material O55P?