If you spent $3.19 for a pound of coffee in 2006, what would the price have been

Question:

If you spent $3.19 for a pound of coffee in 2006, what would the price have been in 2012?

Coffee Index. In Exercises, use the following table of index numbers based on the price of a pound of coffee. The index numbers use 2010 as the base year Year Coffee index 2005 2006 2007 2008 2009 2010 2010 2012 2013 2014 2015 78.1 87.5 91.4 96.1 99.2 100.0 101.6