Percent -Part whole-Tax and Tips

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you calculate the percent of a number?

Back

To calculate the percent of a number, multiply the number by the percent (in decimal form). For example, to find 20% of 50, calculate 50 x 0.20 = 10.

Front

What does 'part-whole' mean in the context of percentages?

Back

'Part-whole' refers to the relationship between a part of a quantity and the total quantity. For example, if 25 out of 100 students passed a test, 25 is the part and 100 is the whole.

Front

How do you find the original price after a discount?

Back

To find the original price after a discount, divide the amount saved by the discount rate (in decimal form). For example, if you saved $40 with a 19% discount, the original price is $40 / 0.19 = $210.53.

Front

What is sales tax?

Back

Sales tax is a percentage added to the price of goods and services, collected by the seller and paid to the government.

Front

How do you calculate the final price including sales tax?

Back

To calculate the final price including sales tax, multiply the original price by the sales tax rate (in decimal form) and add it to the original price. For example, for a $20 item with a 15% tax: $20 + ($20 x 0.15) = $23.

Front

What is a tip?

Back

A tip is a small amount of money given to service workers, typically calculated as a percentage of the total bill.

Front

How do you calculate a tip?

Back

To calculate a tip, multiply the total bill by the tip percentage (in decimal form). For example, for a $28 meal with a 20% tip: $28 x 0.20 = $5.60, so the total bill is $28 + $5.60 = $33.60.

Front

What is the formula to find the percentage of a total?

Back

The formula to find the percentage of a total is: (Part / Whole) x 100 = Percentage.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 25% as a decimal is 0.25.