How many hours did Johnny work? [Excel Homework]

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Story of Johnny, Hard working atom splitter:

Meet Johnny, who lives by the intersection of lane 2345, and BAG street. Johnny (or little Jon as friends call him) is a hard working family guy. He works at local nuclear power plant in a neighborhood named Sheet3. Due to a recent re-organization at work place, Jon found himself reporting to an almost crazy boss named “Bill Lumbergh”.

Lumbergh asking Johnny to split atoms manully before its too late.. or else...,Now, Lumbergh is not your everyday crazy boss, he is so much more than that. So, one day Lumbergh walks over to Jon’s desk and tells him, “Look Jon, we are having issues in the particle accelerator in the basement. It doesn’t seem to split atoms alright. So I need you to go there and split atoms manually. We got 12,789,000 atoms to be split before next weekend. So I am gonna go ahead and ask you to work on it. Ummkay?

Just when Johnny thought of uttering a curse, Lumbergh came back and reminded, “Oh Johnny, remember to log how much time you are spending splitting atoms. I need you to tell me how many hours you worked for every million atoms. Make sure you follow the latest Timesheet report formats, or else…,

Johnny muttered a couple of real ugly cuss words that are not blog worthy and went about his business of splitting atoms. He managed split only 11 million of them before the deadline given by Lumbergh. Those darned atoms!

Also, Johnny logged the time he spent for every million atoms using, well, excel. Like this:

Data - Start and End times for each task - Calculating working hours between 2 given dates

(Download the data)

Your homework:

Johnny needs your help to figure out how many hours he worked in total (as well as for each million). He is already tired hunting a missing electron in the basement alleys. So don’t tell him to count manually. He wants to have an excel formula that tells him how many hours he worked given a start and end date in cells A1 and A2 respectively. Remember,

  • Johnny never works after 6pm or before 9am
  • Johnny never works on weekends.
  • Lets say Johnny doesnt take any lunch breaks (he has developed a taste for those higgs bosons sandwich with positron milk shake).

So I am gonna go ahead and ask you to complete this homework before the weekend. When you got the correct formula, come back here and post it in comments. Ummkay?

More excel homework:

PS: If you feel lost, that is because you have not seen office space. Go watch it.
PPS: if you still feel lost, that is because you do not know NETWORKDAYS. Go learn it.

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19 Responses to “Free Invoice Template using Excel – Download”

  1. Doug H says:

    Nice post! Invoicing for the small biz or solo entrepreneur is something I see a lot of interest in. Also there are great templates from http://office.microsoft.com/en-us/templates

  2. Abhay says:

    This is awesome.

    I would need a little more. e.g. say I generate a Inv. # 1 with all the details. Once done I can click a button all the relevant details gets stored in some table. Further, when i generate a new invoice those details gets stored in same table but just below the previous invoice.

    Is their a way to do this?

  3. Hui... says:

    Daily dose of Excel held a competition in 2005 for this same topic
    It obtained 9 solutions which are shown:
    http://dailydoseofexcel.com/archives/2005/10/27/invoice-app-the-results/

  4. parimal says:

    How can i removed Dollar Sign, As want to use this in india.
    Please reply.

  5. parimal says:

    Also if possible then can i use Indian Rupee Sign and how?

  6. Gaurang Mhatre says:

    Hi Chandoo,

    Thanks for sharing this invoice template, Let me tell you this template will definitely help me since I got a process to handle where this invoice piece comes. Just a small doubt, can we store all the invoice details in PRODUCT & SERVICES sheet. So that whenever I select an invoice number from invoice sheet I can take print out and I can share it as well. Can we do that?? Since I will be dealing with this on monthly basis.
    It would be great if you can help me with this.

    Thanks in advance for your help!

    Regards,
    Gaurang Mhatre

  7. shrikant says:

    Hi Chandoo,

    I was thinking learning excel is quite tuff task but your blog proved me wrong. You made it very interesting. Thank you. Also the template you have provided for Invoice is very helpful to us.

  8. AKIN KARAMAN says:

    Thanks thanks thanks.. Very helpful. 🙂

  9. Trevor Gordon says:

    Hi i love the speadsheet but would like to ask how do i get it to add the description into the invoice as well

  10. Anuj says:

    Hi Randy, I tried to download one of your link "https://www.dropbox.com/s/2yvo0o2tgq9quhe/Medical_Massage_and_Salon_Application-Free.xlsm" However, i found the link unavailable. Can you please help me get the new link or can you please send this VBA file on my Email-ID.

  11. Kapil says:

    Hi, is there any chance that this can work with the "Products & Service" sheet outside of the Invoice sheet. I create multiple invoice files for the numerous clients. Updating the product sheet for each of them maybe a task. Hence, I want to create a MASTER FILE from which data can be picked up without having to insert new data in each of the invoice files.
    Possible? Or am I asking for the moon 😉

  12. Kadr Leyn says:

    Thank you so much for tutorial.
    This example can be reviewed for the example of the advanced invoice that made with excel userform :https://youtu.be/Qr-4of-38DI

  13. Trevor Gordon says:

    Good Day
    i love this template may i ask if it could be modified to have the following
    when you lookup a item code in the next column to the right it brings up the description then the quantity, unit cost, discount and then total otherwise i love the template

    Item Code Description Quantity Unit Cost Discount Total

  14. Denise Konopka says:

    When creating an Invoice template in Excel are you able to utilize the auto row height and wrap feature when the cell is a merged cell? I need to have a number of cells merged together to allow for enough space to type in the description of work performed (lets say cells A-D are merged in each row) however it seems that I am unable to utilize the auto format feature. To work around this I have to manually increase the row height after each entry. Is there a better solution for this? Thank you!

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