On March 8, 2010, Cento Coffee Shop began charging $2.50 for its drip coffee. Prior to that date, the shop charged $2.25 for its drip coffee. What was the percent increase in the drip coffee’s cost on March 8, 2010?
In this concept, you will learn how to find the percent of increase.
Finding Percent of Increase
Sometimes, you will have a price that has been increased by a specific amount. Other times you can observe that a price has increased over time. Past pricing is often thought of in this way. When you compare a past price and an increased current price, you can figure out the percent by which a price has increased. You call this percent the percent of increase.
The percent of increase from one amount to another is the ratio of the amount of increase to the original amount.
To find the percent of increase, follow these steps.
First, find the amount of increase by subtracting the original price from the new price.
Next, write a fraction in which the numerator is the amount of increase and the denominator is the original amount.
Percent of increase=Amount of IncreaseOriginal Amount
Then, write the fraction as a percent.
Now let’s apply these steps.
Find the percent of increase from 20 to 35.
First, subtract 20 from 35.
Next, write the fraction: Percent of increase=Amount of IncreaseOriginal Amount=1520