Learn Microsoft Access Advanced Programming Techniques, Tips and Tricks.

Rounding Function MRound of Excel

Introduction

Normally we round numbers in calculations when the fractional part is 0.5 or more to 1 (next highest integer) or truncate it altogether. But, there are times that this fractional part itself to be rounded to a certain level so that it can be used for disbursement of money, like wages.

For example, in Currencies when the value ends up in 15 cents, 30 cents they should be rounded to 25 cents, 50 cents respectively for determining the requirement of correct number and denominations of Coins for disbursement. If we decide we need only 50 Cents Coins then a value of 25 Cents or more should be rounded to 50 Cents and less than 25 Cents to zero.

So, we need a function that can accept a value as precision and find multiples of that value and when the remainder value is half or more of the precision value it should be rounded to the next level. Not necessary that it should be a fractional value it can be any value as precision.

In MS-Access we have Round() Function that will only round the Double Precision numbers into the required number of Decimal Places or to the next integer level applying the normal rules that we are already familiar. There is a Worksheet Function MRound() in MS-Excel that can do these kind of calculations, but found nothing like that in MS-Access. We cannot go to Excel when we want this in Access.


The MRound Function

We will write a MRound() Function in Access with the same name.

So here it is:

Public Function MRound(ByVal Number As Double, ByVal Precision As Double) As Double
Dim Y As Double

On Error GoTo MRound_Err

   Y = Int(Number / Precision) * Precision
   MRound = IIf(((Number - Y) / Precision * 100 + 0.1) >= 50, Y + Precision, Y)

MRound_Exit:
Exit Function

MRound_Err:
MsgBox Err.Description, , "MRound()"
MRound = 0
Resume MRound_Exit
End Function

Save the Function and do Test Runs.

Copy and paste the above Code into a Global Module of your Database and save the Module.

Open the Debug Window (Ctrl+G) to try it out directly.

Sample Runs:

? Mround(123.3,.2)

Result: 123.4

? Mround(123.24,.5)

Result: 123

? Mround(123.25,.5)

Result: 123.5

? Mround(123.74,.5)

Result: 123.5

? Mround(123.75,.5)

Result: 124

? Mround(10,3)

Result: 9

? Mround(11,3)

Result: 12


Add to your Function Library

If you would like to share this Function across your Other MS-Access Databases then create a Library Database with the Function in it and set a Reference to the Library Database through Tools- ->References in VBA Window.

Share:

2 comments:

  1. Nice function, although I wish all Excel formulas were inherently available in Access. Is there a similar function/formula that will do the same with ROUNDUP. I’d like to use it for retail pricing where Mround(123.24,.5) would result in: 123.50.

    ReplyDelete
  2. Thanks for the simplified formula. My work demands the use of this function. Thanks to you that I can simply use this to calculate the days quickly without wasting time.

    ReplyDelete

Comments are subject to moderation before publishing.

Translate



PageRank
Subscribe in a reader
Your email address:

Delivered by FeedBurner

http://clicky.com/101199826
Blog Directory Visit blogadda.com to discover Indian blogs

Search

Popular Posts

Search This Blog

Blog Archive

Powered by Blogger.

Follow by Email

Labels

Forms How Tos Functions MS-Access Security Reports msaccess forms Animations msaccess animation Class Module Utilities msaccess controls Access and Internet MS-Access Scurity MS-Access and Internet Array Queries msaccess reports External Links msaccess tips Accesstips Downloads Objects Property Menus and Toolbars Controls Event MsaccessLinks Process Controls Art Work Collection Object WithEvents msaccess How Tos Combo Boxes Graph Charts List Boxes VBA msaccessQuery Command Buttons Command Button Data Dictionary Object Emails and Alerts Form Query RaiseEvent Report Calculation Custom Wizards DOS Commands Data Type ms-access functions msaccess functions msaccess graphs msaccess reporttricks Item Object Reference msaccessprocess security advanced Access Security Add Custom Functions Field Type Fields Form Instances Key Macros Menus SubForm Top Values Variables msaccess email msaccess menus progressmeter Access2007 Auto-Number Copy Expression Join Methods Microsoft Numbering System Records Recordset Security Split Table Time Difference Utility Workgroup Wrapper Classes database ms-access msaccess wizards reference text tutorial vba code Access2003 Accounting Year Action Animation Attachment Binary Numbers Bookmarks Budgeting ChDir Color Palette Conditional Formatting Data Filtering Defining Pages Diagram Disk Dynamic Lookup Error Handler Excel Export External Filter Formatting Groups Hexadecimal Numbers Import Labels List Logo Macro Mail Merge Main Form Memo Monitoring Octal Numbers Operating System Paste Primary-Key Product Rank Reading Remove Rich Text Sequence SetFocus Summary Tab-Page Tables Union Query User Users Water-Mark Word automatically commands function hyperlinks iSeries Date iif msaccess msaccess alerts pdf files restore switch toolbar updating upload

Featured Post

WithEvents and All Form Control Types

Introduction So far we have worked extensively with only one type of Control: the TextBoxes on Form, enabled with Events to Raise and captur...

Labels

Blog Archive

Recent Posts