How do you calculate tax and tip?

Mental Arithmetic

If you are tipping 15 percent, multiply the pre-tax amount by 10 percent and then add half of that amount. So, if you have a bill for $27.50, 10 percent is $2.75, and half of that amount is roughly $1.38.
Another easy method is to look at your sales tax amount.
A 20 percent tip is simple to calculate.

How do you solve for tax?

Calculating Total Cost. Multiply the cost of an item or service by the sales tax in order to find out the total cost. The equation looks like this: Item or service cost x sales tax (in decimal form) = total sales tax. Add the total sales tax to the Item or service cost to get your total cost.

How do I calculate tax from a total?

Sales Tax Calculation To calculate the sales tax that is included in a company’s receipts, divide the total amount received (for the items that are subject to sales tax) by “1 + the sales tax rate”. In other words, if the sales tax rate is 6%, divide the sales taxable receipts by 1.06.

How do you solve sales tax problems?

To find the sales tax multiply the purchase price by the sales tax rate. Remember to convert the sales tax rate from a percent to a decimal number. Once the sales tax is calculated, it is added to the purchase price. The result is the total cost—this is what the customer pays.

How do I calculate sales tax manually?

The formula for calculating the sales tax on a good or service is: selling price x sales tax rate, and when calculating the total cost of a purchase, the formula is: total sale amount = selling price + sales tax.

How do you solve Discount problems?

The rate is usually given as a percent. To find the discount, multiply the rate by the original price. To find the sale price, subtract the discount from original price.

What is the sale price of a $15 shirt that is 20% off?

Sale Price = $12 (answer). This means the cost of the item to you is $12. You will pay $12 for a item with original price of $15 when discounted 20%. In this example, if you buy an item at $15 with 20% discount, you will pay 15 – 3 = 12 dollars.

What is a 40% discount on $80?

Percent Off Table For 80.00

1 percent off 80.00 is 79.20	The difference is 0.80
38 percent off 80.00 is 49.60	The difference is 30.40
39 percent off 80.00 is 48.80	The difference is 31.20
40 percent off 80.00 is 48.00	The difference is 32.00
41 percent off 80.00 is 47.20	The difference is 32.80

What is 20% off?

First, convert the percentage discount to a decimal. A 20 percent discount is 0.20 in decimal format. Secondly, multiply the decimal discount by the price of the item to determine the savings in dollars. For example, if the original price of the item equals $24, you would multiply 0.2 by $24 to get $4.80.

What is 30 out of 100 as a percentage?

30%

What number is 8% of 120?

Latest calculated numbers percentages

8% of 120 = 9.6	Mar UTC (GMT)
6.2% of 58.5 = 3.627	Mar UTC (GMT)
404% of 1,450 = 5,858	Mar UTC (GMT)
10% of 27.08 = 2.708	Mar UTC (GMT)
– 1% of 635,084 = – 6,350.84	Mar UTC (GMT)

What percentage is 3 out of 120?

2.5