Cinnamon Corp. started business in 2017 and uses the weighted average cost method. During 2017, it purchased 50,000 units of inventory at 10 each and sold 40,000 units for 20 each. In 2018, it purchased another 40,000 units at 12 each and sold 45,000 units for 26 each. Assuming the use of a periodic inventory system, Its 2018 cost of sales ( thousands) was equal to: