FIX: FoxPro Calculator Returning Incorrect Percentages

 Last reviewed: October 14, 1997
Article ID: Q104477
2.00 2.5x 2.60 2.60a | 2.5x 2.60 2.60a 3.00 
MS-DOS               | WINDOWS
kbtool kbfixlist kbbuglist

The information in this article applies to:

  • Microsoft Visual FoxPro for Windows, version 3.0
  • Microsoft FoxPro for Windows, versions 2.5x, 2.6, 2.6a
  • Microsoft FoxPro for MS-DOS, versions 2.0, 2.5x, 2.6, 2.6a

SYMPTOMS

The FoxPro calculator returns the wrong values when the percent (%) sign is used. Incorrect values are consistently returned regardless of the numbers used in the calculation. For the numbers 2 and 3 divided by any number, the percentage returned appears to be half of what it should be. For higher numbers, it appears as if the calculator is actually inserting a MOD() function and returning a percentage of the remainder.

RESOLUTION

To work around this problem, choose the equal sign (=) instead of the percent sign, and then multiply by 100.

STATUS

Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. This problem was corrected in Visual FoxPro 3.0b for Windows.

MORE INFORMATION

Steps to Reproduce Problem

NOTE: In Visual FoxPro to run the calculator, type the following in the Command window: 

   ACTIVATE WINDOW CALCULATOR

  • In the calculator, enter 1 divided by 2 and then choose the percent sign. The correct value returned is 50.

    NOTE: In Visual FoxPro for Windows, .02 is returned.

  • Clear the value, enter 2 divided by 4, and then choose the percent sign. The value returned is 25 (it should be 50).

    NOTE: In Visual FoxPro for Windows, .08 is returned.

    • Additional reference words: VFoxWin FoxWin FoxDos 2.00 2.50 2.50a 2.50b
    2.60 2.60a 3.00 buglist2.00 buglist2.50 buglist2.50a buglist2.50b
    buglist2.60 buglist2.60a fixlist3.00b buglist3.00
    KBCategory: kbtool kbfixlist kbbuglist
    KBSubcategory: FxtoolAccessory
    Keywords : FxtoolAccessory kbbuglist kbfixlist kbtool
    Version : 2.00 2.5x 2.60 2.60a | 2.5x 2.60
    Platform : MS-DOS WINDOWS
    Solution Type : kbfix

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    Last reviewed: October 14, 1997
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