Suppose the price of a movie falls from $9 to $7.Using the midpoint method,what is the percentage change in price?
A) 33 percent
B) -33 percent
C) 25 percent
D) -25 percent
E) -97 percent

Question

Quizplus · Accepted Answer

The midpoint method calculates percentage change as (new value - old value) / average of the two values. Here, it's ($7 - $9) / (($9 + $7) / 2) = -2 / 8 = -0.25, or -25 percent.

Suppose the Price of a Movie Falls from $9 to $7.Using