Hi, I'm Ted. Today, I'm going to show you how to make a very simple business account ledger in Excel. I have something set up already on my screen here, and it's just several fictional transactions. I have a table with the data: date of the transaction, the transaction, the category, the type (meaning expense or income), and then the amount. Where if it's an expense, it's a negative number, if it's an income, it's a positive number. So, the kinds of things you can do with this is you can enter in the category and actually sort by category. This is something that's very good to know, in fact, it's important to know if you use Excel at all. The ability to do this kind of thing is very useful. But first, let me just show you how you can use this to add up your balance. As you move along, what is going to be in the balance. Here, I'll just scroll in a little. It's going to be a formula, and it's just going to be equal to the sum of all the numbers from the first number to whichever number you're at. So, the first one is just simply itself. So, you can have a range and a formula that goes from E to -E. That just means I'm adding all the numbers from this number to itself. But what we're going to do before we hit enter and actually enter in the formula, the start of this range here on the E-, we're going to put a dollar sign before the two. What that means is that's telling Excel that when we copy this formula somewhere else, we don't want to change that. The two remains fixed, and you'll see why that's important in just...