Percent Increase/Decrease
A carton of eggs used to cost $2 but now costs $3. Its percent increase is _____?
What is 50%?
Jenny bought a $10 T-shirt with a 9% sales tax. How much was the tax?
What is $0.90?
The $10 book was discounted by 30%. What is the cost of the book?
What is $7?
Mei has 60 milliliters of a solution that is 35% nitric acid. How many milliliters of nitric acid does the solution contain?
What is 21 mL?
Jeremy wanted to buy a $25 basketball with a 8% sales tax. How much money does he need?
What is $27?
Doug deposited $250. He earned $50 from interest after 5 years. What was the interest rate? Express as a percentage.
What is 4% ?
Nadia is a stockbroker. She earns 4% commission when she sells stocks. Last week, she earned $288 in commission. What was the total amount of her sales?
What is $7,200?
Years ago there were 360 students in SHS but now there are 720. The percent increase is ______?
What is 100%?
Thomas bought groceries for $41 with a 6% sales tax. How much did the groceries cost with tax?
What is $43.46?
The $135 shoes were 30% off and had a sales tax of 5%. How much do the shoes cost including tax?
What is $99.23 ?
Maeve found a 5.5% interest rate for her $50. She was required to deposit her money for 5 years at which point she can withdraw all her money. How much can she withdraw?
What is $63.75?
A student answers 90% of the questions on a math exam correctly. If he answers 27 questions correctly, how many questions are on the exam?
What is 30 questions?
The number of people in the world increased from 6 billion people to 7 billion. Its percent increase is _______? Round to the nearest percent.
What is 17%?
A department store buys 300 shirts for a total cost of $7,200 and sells them for $30 each. Find the percent markup.
What is 25%?
A diamond ring that normally sells for $1,275 is on sale for $1,020. What is the percent markdown for the diamond ring?
What is 20% ?
Peggy borrowed $700 from the bank. She borrowed the money for 5 months years at a rate of 1.5%. How much interest will she owe?
What is $4.38?
When a volcano erupts, the height of the peak is reduced and the upper portion is removed. The height of a volcano after it erupted was 8,219.5 feet. This was 85% of the original height. What was the original height?
What is 9,670 feet?
The number of hairs on David's grandfather's head decreased from 110,000 to 80,000 when he went bald. The number of hairs on his head decreased by what percent? Round to the nearest percent.
What is 27%?
Gary wants to buy a video game with an original price of $48. The game got popular so the price was marked up by 10%. The sales tax in his state is 4.5%. How much will he spend total?
What is $55.18?
An iPad has been discounted by 10%.The iPad now costs $728.01. What was the original cost of the iPad?
What is $808.90 ?
Theodore earned $92.40 in interest after 4 years on a principal of $550. Bella earned $216.00 in interest after 4 years on a principal of $1,500. Whose bank has the higher interest rate and by how much?
What is Theodore? His interest rate is 0.6% higher (4.2 - 3.6)
Kristen is promoting an upcoming play. She has two options for how she will be paid. Option A is an hourly wage of $7.00. Option B is a 5% commission on all money made during the play. She plans to work 2 days for 8 hours each day. How much money will the play need to bring in for both payment options
to be equivalent?
What is $2,240?