The ABC sole proprietorship deals with the trade of IT items and the provision of related services. Carry out the adjustment entries of the accounts for the fiscal year 20X6 as well as those for the determination of the gross profit taking into account the following information:

1. For the accounting of inventories, the company applies a periodic inventory and evaluates the inventories using the weighted average cost method.
2. The company trades the kind P. The initial inventory consists of 20 units with a purchase price of 50 per unit. In the fiscal year, 20X6 bought 80 units for 55 per unit and 80 units for 60 per unit. In the inventory of 31/12/20X6, the stocks in the warehouse consist of 30 units whose liquidation price amounts to 55 per unit.
3. Total gross merchandise sales amounted to 45,000 and sales returns to 400.
4. During the 20x6 fiscal year, the company had purchased $1,000 at a $200 exchange rate= 1. On 31/12/20X6, the current USD exchange rate is $1 = 1.2.
5. The company held 1,000 shares of OTE which were bought for 2 per share and which on 31/12/X6 were traded for 1.8/share. This price was considered to be the fair value of the share.
6. Due to the adverse economic environment, the company decided to form provisions for bad debts, for the first time, at an amount of 10% of the balance of the customer account. The total sales of the company during the financial year amounted to 45,000 of which, 50% was collected in cash, for 25% of customers accepted promissory notes and for the rest credit had been provided. Sales refunds for the same year amounted to 400 and reduced claims on customers.
7. It was decided to change the method of calculating depreciation on means of transport to that of the sum of the digits of the useful life years. The means of transport had been purchased on 1/1/20x5 for 10,000 and were depreciated by the fixed method in 10 years.