Substract values in two columns in filter mode

Hello everyone
I have data in range("C3:F14")
I will filter my range and after filter I need to subtract column E - Column D (for visible cells only)
For example: I have filtered data and only rows 5 - 9 - 13 are visible
In Column B I need to substract E9-D5 and the result will be in B5
And E13-D9 and the result to be in B9
Hope it is clear

You will need a helper column for this.

First make all cells rows visible.

I am using Column H as helper column.

In cell H5 enter this formula-

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Now In cell B5-

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Workbook attached for reference.

Mr. Sourabh
Thanks a lot for this great and wonderful solution using formulas ..
Is it possible to create UDF for this purpose and get rid of any helper columns?
Best Regards

Hi,
Check this UDF-

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Formula in B5-

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See if this helps!
Check attached for reference.

Great and wonderful udf function
Thank you very much
I just need a little fix for the results .. need to get rid of the last result in last visible row ..as done in formula

Change UDF to-

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and now instead of the old formula use this one in B5-

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Copy down....

Yes that's perfect now
You are amazing ..
Thank you very much for this awesome help
Best Regards