Monday, December 7, 2015

Using Spreadsheets to Calculate

Let me just say, there are MILLIONS of formulas you can use in Excel Spreadsheet. Ok... not millions.... but there are a lot. This post is going to discuss just a few ways common to calculate using a spreadsheet. So, lets get started!

First off, when you're using formulas in spreadsheets, you will have to either type the formula, or click on the formula button. I don't really want to get into the specific details of each formula and how they work, but if you have a question about a specific one, leave a comment below, and i will try to help.


Adding using a Spreadsheet.
 Lets just go ahead and throw in all of the basic math functions.... so addition, subtraction, multiplication, and division. When you're wanting a specific cell to contain the complete formula solution, click on THAT CELL. Once the specific cell is selected either click the formula button (at the top), or type "=" and then the formula. 

I realize this is sort of confusing, but just bear with me. Take a look at this screenshot. Lets say you are planning a trip and you are trying to estimate exactly how much money you will need. You have typed your categories, and your amounts, and now you just need the total. So you would click into the blank cell, type "=SUM(" and then click and drag all the cells that you wish to add. Once you press enter, the sum of the cells will automatically appear. 

NOW for the beauty of calculating in spreadsheets. Lets say you realize halfway through your planning that your hotel will be $18 more than what you had originally thought. All you have to do is change the Hotel amount NOT the Total amount. The spreadsheet will automatically update based on what you type. As with most spreadsheet applications, there is more work at the beginning, but the result is that you have to do very minimal after the beginning.

Lets go on using the same example.... You decide to add 2 more nights to your trip. When you are doing calculations in spreadsheets, you do not have always use numbers that are in a cell. In this situation, instead of paying for 1 night at the hotel, you will be paying for 3 nights at the hotel. So you can simply click on the blank cell, type "=", select the hotel price, then type "*3". In this example you would do the same thing for food and fun (most likely...) and fuel would be the same as just staying for 1 night.


Right before you are leaving for your trip, you are doing some last minute research and you find out that food cost is quite a bit more than what you're used to. You decide to update your spreadsheet. When you change amounts in one cell, all other cells that are linked to that cell update as well! The box highlighted in yellow is the one you changed; the boxes highlighted in green are the ones that automatically updated. Pretty neat, eh?

These types of calculations are very helpful to me when I am planning vacations, reviewing our household budget, keeping up with amount paid on bills, and making general calculations that may or may not need to be updated as time goes on. 


Counting Using a Spreadsheet. "One. Ah-Ah. Two. Ah-Ah. Three. Ah-Ah-Ah." Ok, so counting isn't really that hard, right. But depending on the size of your spreadsheet, it could get difficult to keep your eyes on track and easy to get confused by all of the gridlines.

This is where the count function comes in. In a cell, you can type "=COUNTA(" then click and drag on cells on which you want it to count a text presence. In the screenshot below you can see how the bottom cells count the number of Xs in each column. This creates an easy viewing for many situations. In this example, I wanted to keep a live count on Predators games we would be attending.


There are SO many different calculations you can. As to not bore you in this post, I am going to stop here. If you have a question about a calculation I mentioned, or another calculation that I didn't mention, please feel free to leave a comment!

Thanks for sticking with me throughout this series. This was experimental to test viewership on "an informational topic." Now back to our regularly scheduled program. :)


Other Spreadsheet Posts
Tips & Tricks | List | Schedule | Organize | Calculate



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