Implication of Typical household: Like any average across things with vast variance, a “typical household” would usually be very different from a particular household’s experience. In case, your own expenses are 40% towards rent, 20% towards food, etc. instead of the 22% and 37% of the official typical urban household, your net total inflation would be different from the official CPI figures. By choosing to change the weightages, you can influence the inflation applicable to you.