Greg’s Bicycle Shop has the following transactions related to its

Greg’s Bicycle Shop has the following transactions related to its top-selling Mongoose mountain bike for the month of March 2015. Greg’s Bicycle Shop uses a periodic inventory system.   Using weighted-average cost, calculate ending inventory and cost of goods sold at March 31, 2015. (Round your intermediate and final answers to 2 decimal places.)   Date Transactions Units Cost per Unit Total Cost   March 1 Beginning inventory 20    $160       $ 3,200        March 5 Sale ($220 each) 15            March 9 Purchase 10    180         1,800        March 17 Sale ($270 each) 8            March 22 Purchase 10    190         1,900        March 27 Sale ($295 each) 12            March 30 Purchase 8    210         1,680                      $ 8,580