Kristy's Coffee began 2019 with 100 units of its one product. These units were bought in January of 2019 for $10 per unit. During the month of February 2019, 50 units were bought for $15 each on February 18th, and then 70 units were purchased on February 28th for $20. There were 200 units on hand at the end of February. What is the ending inventory balance and the amount of cost of goods sold if Kristy's Coffe uses a periodic inventory system and the Average Cost method? What if they used a periodic inventory system and the FIFO method?