Imagine this: you go to the grocery store one day and buy a loaf of bread for $2. The next month, you go back to buy the same loaf of bread, but now it costs $2.10. You might think, "Why did the price increase? Is it just this store or is it happening everywhere?" This is where the CPI comes into play. The CPI is a measure that examines the weighted average of prices of a basket of consumer goods and services, such as transportation,...