Multi-Step Percent Applications

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 percent of a number?

Back

To calculate the percent of a number, multiply the number by the percent (as a decimal). For example, to find 20% of 50, calculate 50 * 0.20 = 10.

Front

What is the formula for calculating simple interest?

Back

The formula for calculating simple interest is I = PRT, where I is interest, P is principal amount, R is rate (as a decimal), and T is time in years.

Front

If a product is marked down by a certain percent, how do you find the sale price?

Back

To find the sale price, subtract the discount amount from the original price. Discount amount = Original Price * (Discount Percent / 100).

Front

What is the original price if an item is sold for $75 after a 25% discount?

Back

Original Price = Sale Price / (1 - Discount Rate). So, Original Price = 75 / (1 - 0.25) = $100.

Front

How do you find the total earnings from commission?

Back

Total earnings from commission = (Sales Amount * Commission Rate) + Fixed Salary.

Front

What is the relationship between the original price, sale price, and discount?

Back

The sale price is equal to the original price minus the discount. Sale Price = Original Price - Discount.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 45% = 45 / 100 = 0.45.

Front

If a car costs $20,000 and depreciates by 15% in a year, what is its value after one year?

Back

Value after one year = Original Price - (Original Price * Depreciation Rate). So, Value = 20000 - (20000 * 0.15) = $17,000.

Front

What is the formula to find the percent increase?

Back

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