Access database sum calculation error

[renjith]

Hi all i am having the similar problem.I already designed table field with
tblnaname:receiptdet
fieldname: transferquantity

field size: double
Format :Fixed
Decimal Places:2

i have 90 roes and all ahving value of 51.20
i am getting sum as 4607.99999999999 instaead of 4608.
i want the result in 4608.00

Thanks in advance