hi all..

thanks PremalathaP.. actually, i want to add/minus data in my field in my database in access.. for example..

field1(Item)..............field2(Quantity)
Item1.....................5
Item2.....................8
Item3.....................9
Item4.....................3

for the example above, in my database in access there is a table with 2 field that is field1(Item) and field2(Quantity) where the datatype for field2 is in number. so how can i add/minus in field2 for example in row1 field2, i want to add the data make it 6 and the table like below..

field1(Item)..............field2(Quantity)
Item1.....................6
Item2.....................8
Item3.....................9
Item4.....................3

can someone please help me..