Percent Proportion Flashcard

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 total cost including sales tax?

Back

To calculate the total cost including sales tax, multiply the original price by the sales tax rate (as a decimal), then add that amount to the original price.

Front

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

Back

To find a percentage of a number, multiply the number by the percentage (as a decimal). For example, to find 23% of 65, calculate 65 * 0.23.

Front

How do you find what number a percentage is of?

Back

To find what number a percentage is of, divide the part by the percentage (as a decimal). For example, if 18 is 40% of a number, divide 18 by 0.40.

Front

What does 'discount' mean in shopping?

Back

A discount is a reduction in the price of an item, often expressed as a percentage of the original price.

Front

How do you calculate the sale price after a discount?

Back

To calculate the sale price after a discount, multiply the original price by the discount rate (as a decimal) to find the discount amount, then subtract that amount from the original price.

Front

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

Back

To calculate the percentage of a total, divide the part by the whole and multiply by 100. For example, to find the percentage of games won, divide the number of games won by the total games played and multiply by 100.

Front

What is the relationship between fractions and percentages?

Back

Fractions and percentages are two ways to express the same concept. A percentage is a fraction with a denominator of 100.

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% becomes 0.25.

Front

What is the total cost of an item priced at $10.00 with a 5% sales tax?

Back

The total cost is $10.50.