One day in college, you find yourself sitting in your economics class. In a previous class, you'd discussed the basics of CPI, but it seems the topic continues today. Professor Class, as you recall, in past lessons we've calculated the CPI, the market basket of goods, the inflation rate, and so forth. But today we are going to talk about another handy use for the CPI-using it to compare dollars from different time periods. As you know, over time prices tend to rise. By the way, does anyone remem