The data as to purchase and sales of Product B$-1$ for June follow. The company uses the perpertual inventory system. All units sell for $$300$ each.

June $1$ Beginning Inventory $50$ Units @ $$204$

$5$ Sales $30$ Units

$10$ Purchase $100$ Units @ $$220$

$17$ Sales $60$ Units

$1.$ Determine the cost of ending inventory for June using the weighter average costing method. Round units costs to cents and your final total to the dollar. $

$2.$ Determine the cost of ending inventory for June using the FIFO method. $

$3.$ Determine the cost of goods sold for June using the FIFO method. $

$4.$ Determine the cost of ending inventory for June using the LIFO method. $

$5.$ Determine the cost of goods sold for June using the LIFO method. $

$6.$ Assuming the FIFO method of inventory used, what is the gross profit for June? $

$7.$ Assuming the LIFO method of inventory used, what is the gross profit for June?