I keep getting (d-f) wrong. Can you provide work so I can see why I keep getting it wrong.

Problem 8-06 (Part Level Submission) Swifty Company is a multiproduct firm. Presented below is information concerning one of its products, the Hawkeye. Date Transaction Quantity Price/Cost 1/1 Beginning inventory 1,300 $14 2/4 Purchase 2,300 21 2/20 Sale 2,800 34 4/2 Purchase 3,300 26 11/4 Sale 2,500 38 (a) Your answer is correct. Calculate average-cost per unit. (Round answer to 4 decimal places, e.g. 2.7613.) Average-cost per unit 22.0725 SHOW SOLUTION LINK TO TEXT Attempts: 3 of 5 used(b) Your answer is partially correct. Try again. Compute cost of goods sold, assuming Swifty uses: (Round average cost per unit to 4 decimal places, e.g. 2.7631 and final answers to 0 decimal places, e.g. 6,548.) Cost of goods sold (a) Periodic system, FIFO cost flow 110700 (b) Perpetual system, FIFO cost flow 110700 (c) Periodic system, LIFO cost flow 127800 (d) Perpetual system, LIFO cost flow 117500 (e) Periodic system, weighted-average cost flow 123609 (f) Perpetual system, moving-average cost flow