Percent Application

Front

What is percent error?

Back

Percent error is a measure of how inaccurate a measurement is, expressed as a percentage of the true value. It is calculated using the formula: Percent Error = |(Measured Value - True Value)| / True Value * 100.

Front

How do you calculate a tip based on a percentage?

Back

To calculate a tip, multiply the total bill amount by the tip percentage (in decimal form). For example, for a $29.99 meal with a 15% tip: Tip = $29.99 * 0.15 = $4.50.

Front

What is the formula to calculate the percentage of correct answers?

Back

Percentage of correct answers = (Number of correct answers / Total number of questions) * 100.

Front

How do you calculate sales tax on an item?

Back

To calculate sales tax, multiply the price of the item by the sales tax rate (in decimal form). For example, for a $899 TV with a 6.5% tax: Tax = $899 * 0.065 = $58.43.

Front

What is a commission?

Back

A commission is a fee paid to an employee or agent for services rendered, typically calculated as a percentage of the sales made.

Front

How do you find the total cost after adding a tip?

Back

To find the total cost after adding a tip, add the tip amount to the original bill. For example, if the bill is $29.99 and the tip is $4.50, Total = $29.99 + $4.50 = $34.49.

Front

What does it mean to find a percentage of a number?

Back

Finding a percentage of a number involves multiplying the number by the percentage (in decimal form). For example, to find 20% of 50: 50 * 0.20 = 10.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100. For example, 3/4 = (3 ÷ 4) * 100 = 75%.

Front

What is the relationship between decimals and percentages?

Back

Decimals and percentages are two ways of expressing the same value. To convert a decimal to a percentage, multiply by 100. For example, 0.75 = 75%.

Front

How do you calculate the percent increase or decrease?

Back

Percent increase = ((New Value - Original Value) / Original Value) * 100. Percent decrease = ((Original Value - New Value) / Original Value) * 100.