Math on Collection Objects Doesn't Add Up

I am populating a datagrid with a collection and adding the
amounts in one column to return a total at the bottom and then
performing simple math on the total. The function to loop and add
is shown.
The variables are declared in another place in my code as
[Bindable] public var Variable:Number
Here are the results of the traces -
trace(parentDocument.glTransSetRecords
.detail_amt
Returns each detail_amt on each record. There are 18 results
but only four are not zero, which are: 2966.49,
56.4, 204.57, 124.43
trace("abs trans "+absTransAmt);
3438.3
trace("total Detail amt "+totalDetailAmt);
3351.89
trace("balance pmt "+balancePayment);
86.41000000000031
I have a validation function that runs on this balancePayment
that obviously doesn't work because of these weird results. Does
anyone know where Flex is getting these amounts? The application is
accounting focused and I can't have a system that can't add
properly. Any suggestions would be appreciated.

This is an issue that comes up now and then here on this
forum. The rounding errors you're seeing are due to binary floating
point arithmetic. These errors aren't unique to ActionScript
(Flex/Flash). Consider using functions to correct the errors. Check
out Josh Tynjala's
blog.
TS

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Hi DenisLang,
As far as I know, it is a known issue in SSRS. Please try to install the latest version of the Report Viewer Runtime to fix the issue.
If the issue is persist, I recommend you that submit this suggestion at
https://connect.microsoft.com/SQLServer/ . If the suggestion mentioned by customers for many times, the product team may consider to add the feature in the next SQL Server version. Your feedback is valuable for us to improve our products and increase the
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Regards,
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If you have any feedback on our support, please click
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Alisa Tang
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Math on Collection Objects Doesn't Add Up

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