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Easier way to do calculation in excel
Microsoft Excel is one of the easiest ways to store and calculate data. You can do so much with excel like for example, adding, subtracting, multiplying, dividing, finding the average of a large data, etc. Excel users really like this because even if you change something on the original data, excel calculates and changes the results that got for the formula you used. In this tutorial I am going to demonstrate how to add in very simple steps:
First, you are going to need to open Microsoft Excel 2007.
Navigate to the Start menu > all Programs > Microsoft Office > Microsoft Excel 2007
Click on cell A1, and type in a number, I am going to use the number 5 in cell A1
Now click on cell A2, and type in a second number, I will use 3
After you have typed in the numbers, click on cell A3, where your result will be.
Then, type in the formula.
*In Excel, every formula you use in excel, must start with an equal sign ( = )
After the equal sign, type in the cell you wish the add so it looks like this: =a1+a2
Make sure you use the + so
that excel knows what formula you want to use.

Hit the Enter key on your keyboard, and you should get your answer

Note: Now if you change the 5 or the 3, your answer will automatically change. Say you change the 5 to 30 and the 3 to a 60, your answer will automatically change because you used an formula.