The data of purchasing during the month of an enterprise, who apply cedit method as follows: Purchase 500 units, before-VAT price of VND 200,000 per unit Purchase 300 units with before-VAT price VND 200,000 per unit. On VAT invoice is not written the seller's tax identification number.Purchase 400 units with price written on sale invoice of VND 88,000,000. VAT rate 10%.All purchase is taxable and with receipt of bank paymentThe deductible input VAT amount is: * VND 10,000,000 VND 18,800,000 VND 24,800,000 VND 16,000,000