F-D-P
Conversion
Percent Problems
Simple
Interest
Percent
Change
100

Convert to a percent

0.203

What is 20.3%?

100
What number is 40% of 26?
What is 10.4
100

What does the 'R' mean in the simple interest formula?

What is the simple interest rate?

100
percent change when Original: 50 New: 90
What is 80% Increase
200

What does percent mean?

(Equal) parts out of 100

200
What percent of 80 is 72?
What is 90%
200

You invest $4,500 in a bank at a 3% simple interest rate. How much interest have you earned after 5 years?

$675

200
percent change when Original: 25 New: 24
What is 4% decrease
300

54% as a decimal and a fraction in simplest form

What is 0.54 and 27/50?

300

Marsha bought jewelry for $78. How much did she pay in all if there was a 6% sales tax?

What is $82.68?

300

Chris borrowed $92,000 from a bank for 5 years at a simple interest rate of 14.5%. How much does he owe after 5 years?

What is $158,700?

300

percent change when Original: 8 New: 36

What is 350% increase

400

7/20 as a decimal and percent

What is 0.35 and 35%?

400

Frankie bought a laptop for $998.75 at 15% off. What was the original price of the laptop?

What is $1,175?

400

Amy has a savings account with $42,000 in it. It has a 4% simple interest rate. How much does her account have after 7 years and 6 months?

$54,600

400

Georgia moved from a house that is 65 miles away from her work to a house that is 31 miles away from work. What is the percent change in the distance from home to work rounded to the nearest tenth of a percent?

What is a 52.3% decrease?

500

6.8% as a decimal and a fraction in simplest form.

What is 0.068 and 17/250?

500

Eric wants to buy an air fryer. He can order a $34.25 one from Amazon for 10% off. It has a $14.99 shipping fee. He could also order a $44 one from Best Buy for 20% off and $7.99 shipping. Which is the better deal? 

What is Best Buy?

500

Daniel borrowed a sum of $38,750. After 2 years and 3 months, he owed $8,718.75 in interest. What was his simple interest rate? 

What is 10%?

500

The average price of gas in the US was $2.13/gal in 2005. In 2025, that price rose to $3.14/gal. What is the percent change in gas price?

47.4% increase

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