Answer :
The expression "=D8 - D17" is called a formula when using a spreadsheet.
A formula is a mathematical expression that works on values in a set of cells. Even if the result is an error, these formulae return it. You can use formula to accomplish computations like addition, subtraction, multiplication, and division. For example, =A1+A2+A3 delivers the sum of the values from cell A1 to cell A3.
Another term that formulas are quite familiar with is "function." The terms "formulas" and "functions" are frequently used interchangeably. They are connected, but they are not the same.
A formula starts with the equal sign (=). Meanwhile, functions are utilized to execute sophisticated calculations that would be impossible to perform manually. Excel functions have names that reflect their intended application.
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