Percent Applications Review

Front

What is percent error?

Back

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

Front

How do you calculate the percent error in an estimation?

Back

To calculate percent error, subtract the estimated value from the actual value, take the absolute value of the result, divide by the actual value, and multiply by 100.

Front

What is a tip in the context of dining?

Back

A tip is a sum of money given to a service worker, such as a waiter or waitress, as a reward for their service, often calculated as a percentage of the total bill.

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 15% of $100, multiply 100 by 0.15.

Front

What is the formula for calculating markup?

Back

Markup is calculated by taking the cost price and multiplying it by the markup percentage, then adding that amount to the cost price. Formula: Selling Price = Cost Price + (Cost Price * Markup Percentage).

Front

What does it mean to find the 'amount of change' between two numbers?

Back

Finding the 'amount of change' means calculating the difference between two values, which is done by subtracting the smaller number from the larger number.

Front

What operation do you use to find the difference between two numbers?

Back

You use subtraction to find the difference between two numbers.

Front

What is a 700% markup on an item that costs $0.80?

Back

A 700% markup on an item that costs $0.80 means the selling price is $0.80 + ($0.80 * 7) = $5.60.

Front

How do you express a fraction as a percentage?

Back

To express a fraction as a percentage, divide the numerator by the denominator, then multiply the result by 100.

Front

What is the relationship between percent and decimal?

Back

To convert a percent to a decimal, divide by 100. For example, 15% as a decimal is 0.15.