Li Dong invested and established LD company on January 1, 218, and hired Liu Ying, who has rich experience, as the companys meeting. According to calculations, Liu Yings monthly salary is 4,000 yuan. After a year of operation, the company has achieved good operating results. male In order to attract customers, the company adopts the method of selling goods on credit, and the price of the goods sold is based on the purchase price. The price (cost) is determined by a 40% increase. Towards the end of the year, the companys accountant Liu Ying suddenly purchased a set of more than 500,000 yuan Yuans apartment, and still pay the entire room in one lump sum. Li Dong vaguely felt accounting after learning about it Liu Yings income ability has not yet reached this level. Be suspicious. Li Dong decided to test the accuracy of the company's 1,505,000 yuan of accounts receivable at the end of the year. because He also studied accounting for Li Dong, so Li Dong kept the companys current account, inventory account, and sales income account in Rong conducted an inspection, and after Li Dong's collation, listed the company's 218 year's following information: The company purchased 8 times this year, with a total amount of 7 500 000 yuan; this year, it sold 5 times, of which it has been recovered. The total amount of the purchase price is 5,625 000 yuan; the inventory balance at the end of the accounting period is 2 000 000 yuan. Case requirements: Please help Li Dong estimate the company's account receivable balance at the end of the period. The difference between it and the accounts receivable recorded on the book What's the amount?