3. A company markets a climbing kit and uses the perpetual inventory system to account for its merchandise. The beginning balance of the inventory and its transactions during the month of January were as follows: 25 points January 1: Beginning balance of 18 units at $13 each. January 12 Purchased 30 units at $1 4 each January 19 Sold 24 units at S30 selling price cach. January 20: Purchased 24 units at $17 cach. January 27: Sold 27 units at S30 selling price cach. Using the Weighted Average periodic inventory method, determine the following: a) Closing inventory as at January 27 b) Gross Profit(Loss) for the month