A larger number conventionally represents higher prices. A variety of algorithms are possible and a precise specification (which is rare) requires both an algorithm (an example of which is a Laspeyres index) and a set of goods, fixed known quantities of each (the basket)
Terms related to Price Index:
About.Com Resources on Price Index:- What Is Inflation?
- Should We Adjust Prices For Inflation?
- Cost-Push Inflation vs. Demand-Pull Inflation
Journal Articles on Price Index:

