# Calculation of Percentage of tickets resolved in time period

I was asked to report a monthly metric of the percentage of help desk tickets resolved in 7 days.  At first I thought it would be easy but I am second guessing myself.

I can calculate the number of days each ticket was resolved within 7 days by using the created and resolved dates so determining the number of tickets resolved in 7 days is very easy.

My question is what number do I use as the denominator to get the percentage?  Do I use the total tickets CREATED in the month or do I use the total tickets RESOLVED in the month or do I use something else?

I thought it would be as easy as:  I had 100 tickets resolved in December and of those 100 tickets 10 of them were resolved in 7 days so 10% of the tickets were resolved within 7 days.  But as I mentioned above I started to rethink it.

Any help from the experts(people smarter than me) would be appreciated.

Thank you!
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Commented:
Certainly you must use the same metric for both the numerator and the denominator.

Using resolved makes more sense because then you don't have to worry about tickets that are still open.

So take all the tickets that resolved in December and count how many of those were resolved in 7 days or less.
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Director, Information SystemsCommented:
(Number of tickets resolved * 100) / Total number of tickets for the time period selected.
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Commented:
Reading your post again, I see that that was your original idea. So just take my post as confirmation that you know what you are doing.
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Author Commented:
Thank you Tommy.  That's exactly what I needed.
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