EOG Review: Percents

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 the total cost including sales tax?

Back

To calculate the total cost including sales tax, multiply the original price by the sales tax rate (as a decimal) and add it to the original price.

Front

What is the formula for calculating depreciation?

Back

Depreciation can be calculated using the formula: New Value = Original Value × (1 - Depreciation Rate) ^ Number of Years.

Front

How do you find the percentage of a number?

Back

To find the percentage of a number, multiply the number by the percentage (as a decimal). For example, 20% of 50 is 50 × 0.20 = 10.

Front

What does it mean to mark down an item?

Back

A markdown is a reduction in the original price of an item, often used to encourage sales.

Front

How do you calculate the sale price after a discount?

Back

To calculate the sale price after a discount, subtract the discount amount from the original price.

Front

What is the difference between a fixed percentage and a variable percentage?

Back

A fixed percentage remains constant, while a variable percentage can change based on different factors or conditions.

Front

How do you calculate the difference in sale prices of two items?

Back

To find the difference in sale prices, subtract the lower sale price from the higher sale price.

Front

What is the significance of understanding percentages in real life?

Back

Understanding percentages helps in making informed decisions about finances, discounts, taxes, and comparisons.

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 multiply by 100.