i just need 2 and 3 and i get the wrong answer i just wanna see step by step calculation to see where i got wrong my answer is 318

QUESTION 4 (9 marks) A review of the Double Rainbow Corporation shows the following purchases and sales: Jan 1 Beginning inventory 25 units at $ 8.00 March 3 Purchases 50 units at $ 9.50 April 7 Sales 55 units at $19.00 Aug. 21 Purchases 30 units at $11.00 Oct. 3 Purchases 15 units at $10.00 Dec 15 32 units at $18.00 REQUIRED: Calculate the following. Show all calculations to receive full marks. i. Calculate the number of units in ending inventory. (3 marks) $200 $475 Sales $330 $150 Answer: ii. Calculate FIFO total $ in ending inventory based on the perpetual method (3 marks) Answer: $ iii. Using FIFO based on the perpetual method, calculate the total gross profit. (3 marks) Answer:$