Percent, Tax, Tip, & Discount

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100. It is denoted by the symbol '%'. For example, 50% means 50 out of 100.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply the result by 100. For example, 2/5 = (2 ÷ 5) × 100 = 40%.

Front

What is the formula to calculate tax?

Back

Tax = Property Value × Tax Rate. For example, if a car is valued at $11,250 and the tax rate is 1.5%, the tax owed is $11,250 × 0.015 = $168.75.

Front

How do you calculate a tip?

Back

To calculate a tip, multiply the total bill by the tip percentage. For example, for a $50 bill with a 15% tip, the tip is $50 × 0.15 = $7.50.

Front

What is a discount?

Back

A discount is a reduction in the price of a product or service, usually expressed as a percentage of the original price.

Front

How do you find the percent of a number?

Back

To find the percent of a number, multiply the number by the percent (in decimal form). For example, to find 35% of 78, calculate 78 × 0.35 = 27.3.

Front

What is the relationship between fractions and percents?

Back

Fractions can be converted to percents by dividing the numerator by the denominator and multiplying by 100. For example, 45/50 = 0.9 = 90%.

Front

What does it mean to express a decimal as a percent?

Back

To express a decimal as a percent, multiply the decimal by 100 and add the percent sign. For example, 0.061 = 0.061 × 100 = 6.1%.

Front

How do you calculate the total cost after tax?

Back

Total Cost = Original Price + Tax. For example, if an item costs $100 and the tax is $15, the total cost is $100 + $15 = $115.

Front

What is the formula for calculating a discount?

Back

Discount = Original Price × Discount Rate. For example, if an item costs $50 and has a 20% discount, the discount is $50 × 0.20 = $10.