Question

Marco is discussing how prices have changed with his son, paul. Paul does not believe him, so they decide to research the price of their favorite food items. Use the informations to determine the percent change in question 1-4. Round your answers to the nearest tenth place.

Answer 1

The rest of the question is the attached figure

The percent change =
`(final-initial)/(initial) *100`

If (+ve) increase and if (-ve) decrease

Part A: What is the percent of change in the cost of a pizza?

The initial price = $7.5

The final price = $9

The percent change =
`(9-7.5)/(7.5)*100 = 20`%

Part B: What is the percent of change in the cost of a cheeseburger?

The initial price = $5

The final price = $6.5

The percent change =
`(6.5-5)/(5)=30`%

Part C: What is the percent of change in the cost of a serving fries?

The initial price = $2

The final price = $4.5

The percent change =
`(4.5-2)/(2) = 125`%

Part D: What is the percent of change in the cost of a hot dog?

The initial price = $2.5

The final price = $2

The percent change =
`(2-2.5)/(2.5) = -20`%