One of the most useful math skills is calculating a discount.It is possible to apply it to tips at a restaurant, sales in stores, and setting rates for your own services.The way to calculate a discount is to divide the original price by the percentage.If you subtract the discount from the original price, you can calculate the sale price of an item.You can either use a calculator or round the price and estimate the discount.
Step 1: The percentage discount can be converted to a digit.
Think of the percent number with a decimal to the right.The converted decimal is obtained by moving the decimal point two places to the left.The %displaystyle % sign can be used on a calculator.If you want to calculate the sale price of a pair of shoes, you should use the regular price.You need to convert 25% to a decimal if the shoes are 25% off.
Step 2: Take the original price and divide it by the number.
You can use a calculator or hand it down.This will show you the discount or what value is being taken off the original price.If you wanted to find a 25% discount on a pair of shoes, you would use 69.95.25 as the displaystyle.
Step 3: The original price should be subtracted from the discount.
Line up the decimal points and subtract as you would whole numbers.Dropping the decimal point into your answer could be dangerous.You can use a calculator.The item's sale price will be different.If a pair of shoes that are originally $69.95 have a discount of $17.49, you can subtract 69.95 from the sale price.The shoes are on sale.
Step 4: The price should be rounded to the nearest ten.
Rounding rules can be used to round up or down.It will be easier to calculate the percent discount if you do this.Round the price up to $50 if the original price is $47.89.
Step 5: Take the rounded price and divide it by 10.
Think of the price written in dollars and cents as 10% of a price.The decimal point should be moved to the left.The number is equal to 10%.If you want to calculate 10% of $50, you can use $50 as a reference.10% of 50 is 5.
Step 6: There is a number of tens in the percent off.
Normal division rules can be used to figure out the number of tens.Don't worry about fives in the percentage.If a shirt is 35% off, you need to know how many tens are in it.There are three tens in 35.
Step 7: 10% is divided by the appropriate factor.
The factor is determined by the percentage off.If you divide the price by the number of tens, you can find a larger percent.If you found that 10% of $50 is 5, you would divide it by 3 to find out how much 30% of 50 is.It's 30% of $50.
Step 8: If necessary, calculate 5% of the price.
If the percent off discount ends in a 5 rather than a 0, you will need to do this step.If you divide the original price by 2, you can calculate 5%.If 10% of $50 is $5, then 5% is $2.50, since it's half of $5.
Step 9: If necessary, add the remaining 5% to the discount.
This will show the total discount of the item.If a shirt is 35% off, you first found 30% of the original price.5% of the original price was $2.50.If you add the values of 30% and 5%, you get fifteen dollars and twenty dollars.The shirt has an estimated discount of $17.
Step 10: The discount should be subtracted from the rounded price.
This will give you a price for the item.If the rounded price of a shirt is $50, and you found the 35% discount to be $17.50, you would calculate $50$17.50.There is a shirt on sale that is 34% off.
Step 11: The sale price should be calculated.
The television was originally priced at $154.88.It now has a discount of 40%.If you want to convert the percentage discount to a decimal, move the decimal two places to the left.Multiply the original price by the number.Subtract the discount from the original price.The television was sold for $92.95.
Step 12: The sale price of a camera is 15% off.
The original price was $449.95.The percentage discount can be converted to a decimal by moving the decimal two places to the left.The original price is 449.95.15/67.49displaystyle.Subtract the discount from the original price.The sale price of the camera is $382.46.
Step 13: The sale price should be estimated.
The regular price of a tablet is $199.99.It is on sale for 45% off.The price should be rounded to the nearest ten.You would round up if it was 1 cent away from $200.10% is the rounded price.If you move the decimal one place to the left, you'll see that 10% of $200.00 is $20.00.Determine the percentage off.You know that there are 4 tens in 45%.10% of the price is divided by the appropriate factor.If the percentage off is 45%, you would take 10% of the rounded price and divide it by 4 to get 5%.This is only half of 10%.Half of $20 is $10The remaining 5% can be added to the discount.45% is $90, and 40% is $80.Subtract the discount from the rounded price.The sale price is $110.