Percentage
Express 30% as a fraction.
3/10
Find the percentage change if a student's grade increased from 70% to 85%.
21.43%
What is the discount on a $150 item if the final price is $120?
$30
If the total amount after 5 years is $1,200 and the principal was $1,000, what is the interest rate?
4%
What is the total amount after 10 years if $500 is invested at an interest rate of 2% compounded annually?
$610.51
What is 25% of $200?
$50
If the price of a product decreases from $60 to $45, what is the percentage decrease?
25%
If a shirt is marked up from $30 to $45, what percentage mark-up is this?
50%
How much interest does $800 earn in 2 years at an interest rate of 6% per annum?
$96
How much will $1,000 grow to in 5 years at 3% annual interest compounded quarterly?
$1,161.18
If a product is priced at $80 and the price increases to $100, what is the percentage increase?
25%
Calculate the percentage change when a stock price moves from $50 to $40.
-20%
Calculate the discount amount on a $120 item with a 25% discount.
$30
Calculate the total amount after 4 years if $500 is invested at 3% per annum.
$560
Calculate the compound interest if $1,500 is invested at an interest rate of 4% compounded monthly for 2 years.
$124.71
Calculate the percentage of bananas priced at $2.90 per kilo compared to $3.50 per kilo.
82.86%
If the price of a laptop increases from $800 to $1,000, what is the percentage change?
25%
If an item originally costs $200 and is marked up by 15%, what is the new price?
$230
If $1,000 is invested at an interest rate of 5% per annum for 3 years, how much interest is earned?
$150
If $2,000 is invested at an interest rate of 5% compounded annually for 3 years, what is the final amount?
$2,315.25
What is the formula to calculate a percentage?
Percentage = (Value 1 / Value 2) × 100
What is the formula for percentage change?
Percentage Change = [(Final Value - Original Value) / Original Value] × 100
What is the final price after a 20% discount on an item priced at $50?
$40
What is the formula for calculating simple interest?
Interest = (Principal × Rate × Time) / 100
What is the formula for calculating compound interest?
A = P(1 + r/100)ⁿ