Assume a periodic inventory system. X Corp. started in 2007 and uses weighted average cost method. During 2007, X buys 50,000 units @ $11 each and sold 40,000 units at $25 each. In 2008, X bought another 50,000 at $13 each and sold 45,000 units at $25 each. X Company's 2008 cost of sales (in thousands) was closest to: $570 $571 $190