I only need help with the 1st part

Laker Company reported the following January purchases and sales data for its only product. The Company uses a perpetual inventory system. For specific identification, ending inventory consists of 250 units from the January 30 purchase, 5 units from the January 20 purchase, and 20 units from beginning inventory. Units Acquired at Cost 165 units @ $ 9.00 = Units sold at Retail $ 1,485 125 units @ $ 18.00 Date January 1 January 10 January 20 January 25 January 30 Activities Beginning inventory Sales Purchase Sales Purchase Totals 110 units @ $ 8.00 = 880 125 units @ $ 18.00 $ 7.50 = 250 units 525 units 1,875 $ 4,240 250 units 1. Compute gross profit for the month of January for Laker Company for the four inventory methods. 2. Which method yields the highest gross profit? 3. Does gross profit using weighted average fall between that using FIFO and LIFO? 4. If costs were rising instead of falling, which method would yield the highest gross profit? Answer is not complete. Complete this question by entering your answers in the tabs below. Req 1 Req 2 to 4 Compute gross profit for the month of January for Laker Company for the four inventory methods. (Round cost per unit to 2 decimal places and final answers to the nearest whole dollars.) LAKER COMPANY For Month Ended January 31 Specific Weighted FIFO LIFO Identification Average Sales $ 4,500 $ 4,500 $ 4,500 $ 4,500 Cost of goods sold Gross profit $ 4,500 4,500 4,500 $ 4,500 $