Make the same assumptions as in Example 18.4 (Section 18.1). How does the percentage decrease in air

Question:

Make the same assumptions as in Example 18.4 (Section 18.1). How does the percentage decrease in air pressure in going from sea level to an altitude of 100 m compare to that when going from sea level to an altitude of 1000 m? If your second answer is not 10 times your first answer, explain why.