# Math Help - Sales Volume Index

1. ## Sales Volume Index

Hello !

Thanks for the great forum and resources. This is my first post here.

I have the following question:

I have searched and googled it well but coudn't find the meaning of Sales Volume Index.

The following figures are given:

Year-----------------2001-----------------2002-----------------2003
Sales(\$'000)---------4,000----------------4,510-----------------5,100
Sales Volume Index---100------------------110------------------121

Can someone please tell me how they calculated the sales volume index ?

Thank you for your kind support.

2. ## Re: Sales Volume Index

You can define an index however you like. From the name in the question i would guess that it is:

$index = \frac{\text{Numer of units sold in current Year}}{\text{Number of unis sold in 2000}} \times 100$

There is not enough information in your post to see if this is actually the method used (price information is missing).