core: $\frac{70}{450}$

A nominal variable would be preferred over a real one in the following situation:

assessing whether your stocks have become more valuable based on the inflation rate.

$$ a couple comparing the interest on a housing loan offered by two banks.

$$ comparing the cost of the average grocery bill of a family in $2019$ and $2021.$

comparing the cost of a new car from one year to the next.