Perform these same calculations for $2021$ and $2022,$ and enter the results in the following table.

Quantity in Basket

$2020$

$2021$

$2022$

Price

Cost

Price

Cost

Price

Cost

$($Dollars$)$

$($Dollars$)$

$($Dollars$)$

$($Dollars$)$

$($Dollars$)$

$($Dollars$)$

Streaming services $16464104$

$134$

Iced coffees $15023002$

$2$

Textbooks $108080085$

$105$

Notebooks $82162$

$4$

Energy drinks $4031204$

$5$

Total cost $1,300$

Price index $100$

Suppose this price index uses $2020$ as the base year.

In the last row of the table, calculate and enter the value of the UPI for the remaining years.

Between $2020$ and $2021,$ the UPI increased by

$\%$

$.$ Between $2021$ and $2022,$ the UPI increased by

$\%$

$.$

Which of the following, if true, would illustrate why price indexes such as the UPI might overstate inflation in the cost of going to college? Check all that apply.

As the price of textbooks increased, more and more students turned to the used$-$book market or chose not to buy textbooks at all, instead using the copies on reserve in the library.

Professors required each student to buy eight notebooks, regardless of the price.

The quality of content provided by streaming services improved dramatically from $2020$ to $2022.$ Many companies invested heavily in the actors cast for their original series, but this quality change is hard to measure.

A natural dietary supplement is developed that is clinically proven to safely boost memory.