no hand-writing and show how you get the answer.

The following units of an item were avallable for sale during the year Jan 1. Inventory 30 units @ $130 Mar 10. Purchase 70 units @ \$140 Aug. 15. Purchased 10 units @ \$145 Dec 10. Purchased 70 units @\$150 There are 80 units of the item remaining in the physical inventory on December 31st. The periodic inventory system was used. Determine the inventory cost and cost of merchandise sold using the three main methods (ROUND TO THE NEAREST DOLLAR)