did I do this correctly? please also explain the missing parts.

Kramer Corp. reported the following sale and purchase transactions related to a specific product in January 2017: Unit Cost Unit Sales Price Date Transaction Quantity Jan. 1 Jan. 3 Jan. 6 Jan. 8 Jan. 9 Jan. 15 Beginning inventory 13 units $ 45 Sale on account 8 units $210 Purchase on account 31 units 50 Sale on account 7 units 210 Sale on account 5 units 210 Sales returned due to damage, $420 (two units that were sold on January 9). The units were in very poor condition and were destroyed. Kramer Corp. uses a perpetual inventory system and the FIFO inventory costing method. Required: 1. Compute net sales and gross profit for January 2017. Net sales $ Gross profit $ 3,780 2,545 2. Determine the inventory turnover ratio and the average days to sell inventory for January 2017. (Do not round your intermediate calculations. Round the "Inventory turnover ratio" to 2 decimal places and "Average days to sell inventory" to the nearest whole number.) Inventory turnover ratio Average days to sell inventory 1.37 22 days 3. Prepare the journal entries to record the purchase transaction on January 6, the sale transaction on January 8, and the sales return on January 15. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.) View transaction list Journal entry worksheet Record inventory of goods on account. Note: Enter debits before credits. Date General Journal Debit Credit Jan 06 Record entry Clear entry View general journal 4. Compute the cost of sales for January 2017, assuming for this part only that Kramer uses the weighted- average cost method. (Do not round intermediate calculations. Round the final answer to the nearest dollar amount.) Total cost of sales $ 873