Question

Write your own problem using percent of change.​

Answer 1

A store is having a sale on smartphones. The original price of a smartphone is $600, but during the sale, the store offers a discount of 25%. What is the new price of the smartphone after the discount?

Solution:

The amount of the discount is 25% of the original price, which is (25/100) x $600 = $150.

To find the new price, we need to subtract the discount from the original price:

New price = Original price - Discount

New price = $600 - $150

New price = $450

Therefore, the new price of the smartphone after the discount is $450.

Answer 2

Answer & Step-by-step explanation:

Yesterday, apples cost $2.00 per lb.

Today, apples cost $2.25 per lb.

What is the percent change in the price of apples from yesterday to today?

percent change = (new value - old value)/(old value) × 100%

percent change = ($2.25/lb - $2.00/lb)/($2.00/lb) × 100%

percent change = ($0.25/lb)/($2.00/lb) × 100%

percent change = 0.125 × 100%

percent change = 12.5%

Since the percent change is positive, the percent change is an increase.

Answer: The percent change is an increase of 12.5%.