A company had the following purchases and sales during its first month of operations:

January 1	Purchased 10 units at $4.00 per unit
January 9	Sold 6 units at $12.00 per unit
January 17	Purchased 8 units at $5.50 per unit
January 27	Sold 7 units at $12.00 per unit

Using the perpetual weighted average method, what is the value of cost of goods sold? (Round weighted average costs per unit to 2 decimal places.)