Multiplies all the numbers given as arguments and returns the product.
Syntax
PRODUCT(number1,number2,...)
Number1, number2, ... are 1 to 30 numbers that you want to multiply.
Remarks
 Arguments that are numbers, logical values, or text representations of numbers are counted; arguments that are error values or text that cannot be translated into numbers cause errors.
 If an argument is an array or reference, only numbers in the array or reference are counted. Empty cells, logical values, text, or error values in the array or reference are ignored.
Example
The example may be easier to understand if you copy it to a blank worksheet.
How to copy an example
 Create a blank workbook or worksheet.
 Select the example in the Help topic.
Note Do not select the row or column headers.
Selecting an example from Help
 Press CTRL+C.
 In the worksheet, select cell A1, and press CTRL+V.
 To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

A 
Data 
5 
15 
30 
Formula 
Description (Result) 
=PRODUCT(A2:A4) 
Multiplies the numbers above (2250) 
=PRODUCT(A2:A4, 2) 
Multiplies the numbers above and 2 (4500) 
