Think of examples of goods whose relative price has risen or fallen by a large amount. In 2007, the price of a gallon of gas was $2.59. In 2017, the price of a gallon of gas was $2.32 In 2007, the price of a dozen eggs was $1.63. In 2017, the price of a dozen eggs was $1.40. Between 2007 and 2017, the relative price of a gallon of gas with respect to a dozen eggs and the relative price of a dozen eggs with respect to a gallon of gas .

Between 2007 and 2017, the relative price of a gallon of gas with respect to a dozen eggs rose and the relative price of a dozen eggs with respect to a gallon of gas fall.

Explanation:

Given:  In 2007, the price of a gallon of gas was $2.59.

In 2017, the price of a gallon of gas was $2.32.

Change in price of a gallon of gas = price in 2017 - price in 2007

= $2.59 - $2.32

= $0.27

In 2007, the price of a dozen eggs was $1.63.

In 2017, the price of a dozen eggs was $1.40.

Change in price of a dozen eggs = price in 2017 - price in 2007

= $1.63 - $1.40

= $0.23

Clearly, Change in price of a gallon of gas > Change in price of a dozen eggs

It means, Between 2007 and 2017, the relative price of a gallon of gas with respect to a dozen eggs rose and the relative price of a dozen eggs with respect to a gallon of gas fall.