Unfortunately, the Round() function in Access is broken and does not support
negative powers of 10 like the Excel Round() function does.
You could use this one by Ken Getz:
Implementing a custom Rounding procedure
at: http://www.mvps.org/access/modules/mdl0054.htm
Be sure to rename it so it doesn't fight with the built-in one.
On my website (www.rogersaccesslibrary.com), is a small Access database
sample called "SigFigs.mdb" which illustrates how to do this. Put your
value in Text0, choose 3 in the combo box, then click Calculate Number.
To use this, you need to copy the two modules into your Access database.
After that, it depends on what you are doing.
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