How Do You Calculate Averages By Month? 
How Do You Calculate Averages By Month?  Excel 

I have two columns of data: column A contains the date and time in the form dd/mm/yyyy. Column B contains a number value. All the times are in order, so column A looks like:
01/01/2007
02/01/2007
03/01/2007
I have data from 2007 to 2010. I need to calculate an average daily value (in column B) for each month, and display it in column C. So, for January, I need to calculate the average of 31 days, February, 28 days, etc.
Is there a function I can use to do this? I've been trying the AVERAGEIF formula but can't get it to work. Any ideas would be much appreciated!
Many thanks,
Caitlin
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Basically, I've got a sheet that contains a table of entries, and each entry gets a date stamp in the first column. I would like to have the sheet display the average time, in days, between entries. Is this possible?
Thank you in advance!
~cp
I am trying to calculate our On Time Delivery. I want this as a simple percentage of jobs. I have got this running in the following way:
Column M  Estimated Delivery dates
Column N  Actual Delivery dates
Column O  =IF(SUM(M2N2)>0,1,0)
Then I have calculated On Time Delivery as: =SUM((SUM(O2:O252))/(COUNTA(N2:N252)))
This seems to work fine. My problem is, if we enter a date in Estimated without a corresponding Actual date, the formula for Column O fills out anyway and improves our On Time Delivery Percentage. How can I set this up so that the formula doesn't calculate if there is no data in Column N?
Any help much appreciated
Thanks,
James
I can calculate the formula for this , but the problem comes where for eg there is a loss in Jan 2008 for 95415 and there was a profit in Jan 2007 for 80215. How do I set up formula to take negatives & positives into account in calculating the increase or decrease/
Your assistance or anybody's on the forum will be greatly appreciated
Regards
Howard
http://www.mrexcel.com/forum/showthr...ghlight=howardneed
I have sheet muster for my clients of January, 2005 like :
( P = Present, A=Absent )
A.....B.....C.....D.....
Days Sun Mon Tue Wed
Date 1 2 3 4
1 John P A A P
2 Lucy A P P A
3
Now I want to calculate the total Sundays, Mondays, Tuesdays etc. present in
that month. How can I do this?

Knowldege is Power
I have a file that has 8 sheets. the first seven sheets are the days of the week and the 8th sheet is where I want to calculate the hours.
The days of the week consists of "Name" "Date" Hours"
The 8th sheet consists of "Name", "Days of the week in their own column (7 columns in total)", "Total Hours" and "Total Days Worked"
Now... each day is always a different group and what I'm hoping for is to create a formula that can grab each name with their hours and throw them into the 8th sheet. So when the end of the week is done I have all the Employees weekly hours and days worked all finished.
I hope this makes sense. This file is to track about 100 employees that are on a rotational work schedule.
I have attached a sample file.
Thanks in advance for your help.
Received Date & Time: 10/29/2010 3:27:00 PM
Completed Date & Time: 11/1/2010 3:57:32 AM
Business Hours: 08:00 AM to 05:00 PM
Non Business hours: 05:00 PM to 08:00 AM
Weekdays : Monday to Friday
Weekends: Saturday & Sunday
If I calculate TAT for this time period it should show me 1 hour 33 minutes, why because business hours are closing by 5:00 PM on 10/29 so it should not calculate duration after 5:00 PM to until 08:00 AM on next day, however 10/29 is Friday so formula should calculate the duration from 10/29 Friday 3:37 PM to 10/29 5:00 PM and again it should calculate from 8:00 AM on 11/01 Monday and formula should skip Saturday & Sunday.
In this scenario I have completed the task before 8:00 AM on 11/01 so it should show duration of 1hour 33 minutes.
Please let me know if you need any more details
There is about 20 staffs in our department and I have made a spreadsheet with 12 tabs for each month of the year JanDec. If each staff have 15 days annual leave each year and how can I make a formular that can automatically calculate the balance of annual leave and entered in the tabs of the following months. For example if staff A used 5 days in Jan how can the balance of 10days be entered in the tabs from FebDec. If he use another 5 days in July the remain balance of 5 days be automatically entered in the tab from Aug to Dec. Likewise if staff A took 2 days sick leave in Jan, and 2 days in Mar how can this sick days be automatically sum up in the months after. I am doing this manually at the moment and it is very time consuming and also very easy to make mistake.
Thanks and sorry for this long questions
I'm working with Excel 2003 sp 3 on Windows xp.
I have been banging my head trying to jar loose the formula to calculate man days where 1 equals 8 hours. I have one that was given to me by a coworker:
=INT(Q3/8)+(((Q3/8)(INT(Q3/8)))*0.8)
That calculates man days from total hours. I need a formula that will total man days and return the man day answer. Example:
weekending 12/25 = 16.2 which is 16 man days and 2 hours
weekending 1/1 = 24.7 which is 24 man days and 7 hours
Total = 41 man days and 1 hour
I have also been asked if there was a way for a number to be entered into a spreadsheet and automatically put in order without a macro or "pushing a button".
Any advice is greatly appreciated!
Happy New Year!
~ Brenda ~
For example, if I have a total of 53 calls and the total talk time is 4:19:05, what would the average talk per call be? I tried doing everything in seconds (this would give me a total of 15545 seconds) but the total I was getting is 4:89.
What would the formula be to get the correct average time?
A B
312 $1000
54 $1010
35 $1835
32 $1028
53 $1937
I have a question regarding filtering of columns, hopefully someone is able to put me on the right track. I have set up Excel 2007 so that I can click on the dropdown menu in each column to filter them.
However, in my data set there is one blank row separating two set of rows. Now, when I apply the filter on a column, all the rows above the blank row filter correctly, but all the rows below stay unfiltered.
I guess Excel only looks at the consequtive rows, then stops when it hits a blank row. Is there any way of applying the filter beyond a blank row (i.e. the whole column)?
Any advice is higly appreciated.
I have 6 sheets to count and all the names are in column A (from A1:A100) on each sheet. The names are not in a particular order.
On sheet 7 I want to have a cell beside each persons name that counts the number of times their name appeared on the other 6 sheets.
For example Sheet 7 (called total) would have
Joe 5 (where 5 is the outcome of the formula I'm looking for to count all the times "Joe" appears on sheets 16).
I have it counting per sheet with =COUNTIF(A1:A130,"name") but this is not quite what I am looking for.
Thanks in advance for any advice.
Edit: I am using Excel 2007 w/ windows XP
Thanks in advance for any assistance.
Mick
difference where the times cross midnight. Example:
Start time: 23:50:00
End time: 00:15:00
How would you formulate an equation to determine the duration of time or
differnce between the start and end time?
triangle. I copied it to create a new data set and used find &
replace to change the worksheet references to the new ones.
The cells still contain the result of the old formula referring to the
previous worksheets. The only way I can get the formula to return the
correct result is to edit (F2) each cell and press enter. Calc now
(F9) does nothing.
I've seen this before, but this time, I need to calculate many
thousands of cells and don't have time for this workaround.
Any ideas?
Thanks.
Don S
I made a simple worksheet that we have been manually entering the time for employees, but there are too many errors (even with simple math). Can someone help me convert the time of ex: written 84:30 or 103 (meaning 8:00am to 4:30pm) where you have the total weekly hours? Right now I have a column for overtime. Is there a way to automatically calculate the over time also? The work day is 84:30 with a half hour lunch (lunch is not calculated into the hours, so you minus a half hour). 84:30 equals 8 hours. So, if a person works 8am to 6:30pm, how can I set it up where in the first row of time, I will type in 86:30pm. In the totals column to the far right, it will display 8 hours. In the (O.T.) column, it will display 2 hours.
This way, when I call in my payroll, I will have the total "regular" hours in one row and underneath, I will have the total overtime hours.
Or... does anyone have a better solution to keeping track of their hours?
Thanks!
Marty
Am in need for this solution very badly and what could be a better place than excelforum !
I have an MS Excel File (2007 version) sample file attached, which has name, designation, blood group and so on. The last column is for hyperlinking photographs of individuals.
In the same folder where I have saved this excel file, are lying photographs of individuals. While scanning the photographs, I have saved them serially i.e. 1,2,3 and so on.
In the Excel file, in last column, I have given the respective serial numbers. In order to hyperlink one has to select that particular Cell, press Ctrl K and you automatically go to the folder containing individual photographs, you select that photo and OK.
Problem :
I have to do this hyperlinking one by one and if there 1000 photos, lot of time is wasted.
Solution Needed :
Just in case of excel formula, which we copy and paste, Can I get a command by virtue of which the column titled Photo or column next to it gets automatically Hyperlinked to respective photo WHEN I copy and paste such command to all cells in that column.
Thanks a million and warm regards ::: Jack