Hit the Enter key and it will show the result in Cell D4. Here are the steps to make the formula. With the sign you need to put two or more numbers with -operator in between these numbers.
Use the SUM function to add negative numbers in a range.
This will give you result as 4. Use subtraction operator - after that. Content in this video is provided on an as is. For your budget for example you might type your months income into this cell.