TEST Percents, % of Change, Tips & Tax

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 a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 25% of 40, calculate 40 * 0.25 = 10.

Front

What is the formula for calculating % of change?

Back

% of change = (New Value - Original Value) / Original Value * 100.

Front

What is 115% of 80?

Back

92.

Front

What is 25% of 40?

Back

10.

Front

How do you calculate a tip based on a percentage?

Back

To calculate a tip, multiply the total bill by the tip percentage (in decimal form). For example, for a $26 bill with a 15% tip, calculate 26 * 0.15 = 3.90.

Front

What is the final price of an item after tax?

Back

Final Price = Original Price + (Original Price * Sales Tax Rate). For example, for a $990 TV with 9% tax, the final price is 990 + (990 * 0.09) = 1,079.10.

Front

If Sebastian ate 75% of 12 carrots, how many did he eat?

Back

9.

Front

What does 'sales tax' mean?

Back

Sales tax is a tax imposed by the government on the sale of goods and services, usually calculated as a percentage of the sale price.

Front

How do you convert a percentage to a decimal?

Back

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