Algebra 1 : How to find the percent of increase

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #61 : How To Find The Percent Of Increase

Find the percent increase from  to 

Possible Answers:

Correct answer:

Explanation:

For this type of problem we use this formula: . "Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from ____ to ____. In this problem our formula will be filled in as follows: . This is our percent increase. 

Example Question #61 : How To Find The Percent Of Increase

Find the percent increase from  to 

Possible Answers:

Correct answer:

Explanation:

For this type of problem we use this formula: . "Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from ____ to ____. In this problem our formula will be filled in as follows: . This is our percent increase. 

Example Question #62 : How To Find The Percent Of Increase

Find the percent increase from  to 

Possible Answers:

Correct answer:

Explanation:

For this type of problem we use this formula: . "Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from ____ to ____. In this problem our formula will be filled in as follows: . This is our percent increase. 

Example Question #61 : How To Find The Percent Of Increase

Find the percent increase from  to 

Possible Answers:

Correct answer:

Explanation:

For this type of problem we use this formula: . "Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from ____ to ____. In this problem our formula will be filled in as follows: . This is our percent increase. 

Example Question #61 : How To Find The Percent Of Increase

From 2014 to 2015, the price of a popular pair of sneakers rose from  to . What is the percent increase in the price of the sneakers? Please round your final percentage answer to one decimal place. 

Possible Answers:

Correct answer:

Explanation:

To find the percent increase, follow these steps:

First, find the difference between the two values given:

Next, divide the difference in values by the original value:

 

Finally, multiply this decimal by one-hundred to find its percentage equivalent:

Example Question #62 : How To Find The Percent Of Increase

You have a resting heart heart rate of 60 BPM. After 5 minutes of exercise your heart rate has increased by 85%. What is your heart rate at this time?

Possible Answers:

95 BPM

140 BPM

111 BPM

123 BPM

None of these answers.

Correct answer:

111 BPM

Explanation:

If your resting heart rate is 60 BPM and your heart rate increased by 85%, then your heart rate has increased by 85% of 60. Percentages are all relative. 85% means nothing unless it is 85% of something. The total heart rate then would be the sum of 60 and 85% of 60.

Find how much 85% of 60 is:

Add the increase to the resting heart rate:

Example Question #62 : Percent Of Change

Find the percent increase in price if the original cost of an item was $20 and the final cost was $36.

Possible Answers:

Correct answer:

Explanation:

To find the percent of increase, use the following formula:

Example Question #62 : How To Find The Percent Of Increase

If a major league baseball player buys a baseball bat for  and puts his autograph on it, its price goes up to . What is the increase in price expressed as a percent change? Round to the nearest percent.

 

Possible Answers:

Correct answer:

Explanation:

To find a percent change you need to find the increase or decrease amount and divide it by the original amount.

Original price was 

New price is 

Amount of increase was 

Multiply that by  to get it to a percent.

Round it to the nearest percent would make it 

Example Question #63 : How To Find The Percent Of Increase

Avian Influenza has resulted in egg prices worldwide and locally to skyrocket. In April, eggs were  at the supermarket and by May their price tag had swelled to . What is the percent increase in the price of a dozen of eggs from April to May?

Possible Answers:

Correct answer:

Explanation:

To find the percent increase of a dozen of eggs, we first must find the price difference between the April and May prices:

The next step is to divide the difference in price by the original price for eggs. When multiplied by , we are given our percent increase:

Example Question #61 : Percent Of Change

What is the percent increase from  to  ?

Possible Answers:

Correct answer:

Explanation:

For this type of problem we use this formula: 

 

"Difference" is simply the difference between the two numbers given, and "original" is the number that is stated usually after the word "from" , example: from ____ to ____. In this problem our formula will be filled in as follows:

This our percent increase. 

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