-The Data in the Table Above Give Two Points on the Demand

Multiple Choice

-The data in the table above give two points on the demand curve for pizza. Using the midpoint method, when the price of a pizza falls from $10 to $9, what is the percentage change in price?

A) 1.0 per cent
B) 8.2 per cent
C) 5.0 per cent
D) 15.5 per cent
E) 10.5 per cent