Answer:
Cost of living bests fit the gap
Step-by-step explanation:
The overriding purpose of consumer price index is to measures changes in consumers' standard of living.
The consumer price index is a measure of goods and services bought by households on a continuing basis in order to ascertain whether the household is able to keep up with it spending pattern and able to purchase basic needs as it used to purchase previously for instance in a situation of general increase in price levels-inflation