Consider the following simple price index created with a base year of 2004.
![410_simple price index created.png](https://secure.tutorsglobe.com/CMSImages/410_simple price index created.png)
a. Update the index numbers using a revised base year of 2008.
b. Determine the percentage change in price from 2004 to 2012.
c. Determine the percentage change in price from 2008 to 2012.