Rounding Up in Access

[MNNovice]

I have a field called GrossAmount that shows amount in two decimal format. I need to calculate a field called NetAmount where the amount needs to be rounded up. How do I do it in Access? Anyone out there to help, please?

Data type for both the fields are "Currency"

Thanks.

[ChipR]

Since the Round() function uses round-to-even logic, I would be more likely to use:

IIf( amount = Int( amount ), amount, Int( amount ) + 1)

If the amount is an integer, return the amount, otherwise return the integer part of the amount plus 1.

[FishVal]

Rounding .

[MNNovice]

Thanks. I will try and shall get back.

[ChipR]

Thanks Fish, that's pretty interesting.

-Int( -amount )

Much better.

[NeoPa]

Certainly the best approach to the problem (that I've ever discovered).

The beauty is that the Int() function is not restricted to returning only an Integer. It's return is a Variant. It can handle even more digits than a Long. This should not be confused with the CInt() function.

Remember for currency though, that you need to multiply by 100, then divide the result, to get it to round at the penny or cent position. Be careful to ensure the calculation is not treated as a Long or Integer. If it is, the division will fail to work as expected.

[ChipR]

I just thought of

Round(amount+.499)

which should work since the amount should only go to 2 decimal places. Probably Int() is faster though.

NeoPa: I don't understand what you mean by multiply by 100, then divide the result, when rounding a currency or decimal to an integer.

[MNNovice]

ChipR:

Is this the correct way to write the formula in the control for NetAmount?

= int([GrossAmount])

Thanks.

[ChipR]

If you want it to be rounded up, you would need to use

= -Int(-[GrossAmount])

Since Int() rounds numbers down. When we make the number negative and round down, we get a bigger negative number, then we just negate it again and get the positive.
Like:

-Int(-[5.5]) = -Int(-5.5) = -(-6) = 6

[MNNovice]

ChipR:

It works but not the way I need it to. Perhaps I didn't explain my problem clearly. Let's say if the GrossAmount is $100.39, I need the NetAmount to show as $100. If the GrossAmount is $100.67, then the NetAmount is to read as $101.

With the formula = -Int(-[GrossAmount]), $100.39 becomes $101 as NetAmount and the GrossAmount is displayed as $100. Question: Why does the GrossAmount gets changed? It should display as what is entered, in this case it was $100.39.

Thanks.

[ChipR]

I was under the impression that you wanted to round up, since that is what you said in your first post. To do normal rounding, do:

=Round([GrossAmount]+.0001)

[MNNovice]

ChipR: It's working great. Many Thanks.

[ChipR]

No problem, interesting topic.

[FishVal]

Gentlemen, here is a thread where some interesting aspects of Round() function were discussed.

[NeoPa]

@ChipR
This depends on the requirement.

If the requirement is to round the pence up (to a whole currency amount - £, $ etc), then this wouldn't be required.

If, on the other hand, it is to round up a calculated result to the next higher penny or cent value, then you would need something like :

=CCur(-Int(-[Calculated Currency Value]*100) / 100

[ChipR]

Ah, I see what you mean. Thanks for clarifying.

[NeoPa]

Always happy to help Chip. Especially those who contribute so much to the site :)