wiltw
Subscriber
Yeah, the market basket definition does change! I was a bit reluctant to use CPI for that very reason.Many economists agree that the methods to calculate the CPI has been changed over the years so that it actually appears lower than it is. If that;s the case, then any calculation indicated in your paragraph 5 may not be accurate. The current price of the film may really reflect the actual CPI.
If one applied CPI to rent, 2022 rent should be $988.
Simply on the basis of 'multiple for income' vs. 'multiple for film+processing', one can intutively see that cost far surpassed any increase in income!