705 Percent Problems

Sales tax is a percentage of the sale price of goods or services that is collected by the seller and paid to the government.

To calculate sales tax, multiply the sale price by the sales tax rate (as a decimal). For example, for a $100 item with a 5% tax rate, the sales tax is $100 x 0.05 = $5.

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

To calculate a tip, multiply the total bill by the tip percentage (as a decimal). For example, for a $50 bill with a 20% tip, the tip is $50 x 0.20 = $10.

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

To calculate a discount, multiply the original price by the discount percentage (as a decimal) and subtract that amount from the original price.

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare relative sizes.

To find a percentage of a number, multiply the number by the percentage (as a decimal). For example, to find 25% of 200, calculate 200 x 0.25 = 50.

Total Cost = Original Price + (Original Price x Sales Tax Rate).

Total Cost = $30 + ($30 x 0.10) = $30 + $3 = $33.