Percentages NON CALC
Percentages CALC
Profit & Loss
Simple Interest
Inverse Simple Interest
100

20% of $900

$180

100

85.6% of 928 

(no rounding)

794.368

100

Phillip bought a notebook for $3.5 and sold it for $6.25.

$2.75

100

Sarah deposits $1,200 into a savings account that pays 5% simple interest per year. She leaves the money in the account for 3 years. How much interest will Sarah earn? 

$180

100

A total of $180 interest is earned in 2 years at a 6% simple interest rate per year. How much was initially invested? 

$1500

200

25% of 400

100

200

93.25% of 1050

(no rounding)

979.125

200

James buys a car for $18 600 and sells it 5 years later for $10 500. Calculate his profit percentage. 

43.55% loss

200

Emily borrows $1,600 from a friend at a simple interest rate of 6% per year. She agrees to pay it back after 3 quarters. How much interest will Emily owe?

$72

200

Liam deposited $1,500 into a savings account. After 4 years, he earned $300 in simple interest. What was the annual interest rate? 

5% pa

300

Decrease 100 by 20%

80

300

Decrease 95.6 by 18%

(No rounding) 

78.392

300

Liam buys a hall cabinet off Facebook Marketplace for $120.How much should he sell it for if he wants to make a 30% profit? 

$156

300

James takes out a loan of $2,500 from the bank with an interest rate of 4% simple interest per year. He plans to repay the loan after 5 years. What is the total amount James will need to repay at the end of 5 years?

$3000
300

Sofia borrowed $2,000 at a 5% simple interest rate per year. She paid $500 in interest. How many months did it take for Sofia to pay back the loan?

600 months

400

Increase 800 by 30% 

$1040

400

Increase 905 by 105%

1855.25

400

Ella sold a handbag for $72 and made a 20% profit. How much did she buy the bag for? 

$60

400

Samantha takes out a $7600 loan at 7.8% pa simple interest. If she decides to pay back the loan in 10 equal instalments over 5 years, how much will each instalment be? 

$1056.40

400

Amara invested $3,500, and after 4 years, the total amount she received was $4,060. What annual interest rate was Amara's investment? 

4% pa

500

13% of 62

0.806

500

0.01% of 1000

0.1

500

A store bought 15 shirts for $300 in total. They sold 10 shirts at $25 each, but the rest were damaged and couldn’t be sold. Calculate the profit percentage for all the shirts. 

16.67% loss

500

Henry takes out a $9000 loan at 3.2% pa simple interest for 9 years. How much would his equal monthly instalments be? 

$107.33

500

Lucas borrowed $1,800 from a bank at a 5% simple interest rate per year. He repaid a total of $2,070. How many payments did Lucas make if he repaid the loan quarterly? 

36 payments