Calculator: Add (Charge) 8% Sales Tax Rate to the Listed (Before Tax) Price, US $420.78 (USD, US Dollar). Calculate the Final Tax Inclusive Value and the Amount of the Added Sales Tax. Answer, Formula and Explanation

Add (Charge) 8% Sales Tax Rate to the Listed (Before Tax) Price, US $420.78 (USD, US Dollar). Detailed Calculations:

1. Calculate the 'Amount of the Sales Tax':

Formula:

Amount of Sales Tax =

Sales Tax Rate × Price without Sales Tax


Calculation:

Amount of Sales Tax =

8% × 420.78 =

8/100 × 420.78 =

8 ÷ 100 × 420.78 =

0.08 × 420.78 =

33.6624 ≈

(Rounded off to a maximum of 2 decimals)
33.66

2. Calculate the 'Price with Sales Tax':

Formula:

Price with Sales Tax =

Price without Sales Tax + Amount of Sales Tax


Calculation:

Price with Sales Tax =

420.78 + 33.6624 =

454.4424 ≈

(Rounded off to a maximum of 2 decimals)
454.44

Amount of Sales Tax ≈ US $33.66 (USD, US Dollars)
Price with Sales Tax ≈ US $454.44 (USD, US Dollars)

Signs: % percent, ÷ divide, × multiply, = equal, / fraction bar, ≈ approximately equal.

Writing numbers: comma ',' as thousands separator; point '.' as a decimal mark.

More Operations of Adding Sales Tax on a Purchase and Finding Total Sales Price Including Tax:

» Charge 8% Sales Tax to the Price of US $419.78 (USD, US Dollars)

» Charge 8% Sales Tax to the Price of US $421.78 (USD, US Dollars)

Add (Charge) Sales Tax to Listed Prices to Get Tax Inclusive Value

Sales Tax Charged Price = Price without Sales Tax × (1 + Sales Tax Rate %)

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All Sales Tax Charged Prices

Sales Tax Amount and Sales Tax Rate

What is the "Sales Tax"? What is the "Sales Tax Rate"?

  • A sales tax is a consumption tax imposed by states, counties or/and cities and municipalities on the sale of goods and services.
  • The sales tax is paid by the final consumer to the retailer at the point of sale as a percentage of the selling price of the sold good or service.
  • This percentage, called the Sales Tax Rate, varies from state to state, in California for example there is a general sales tax rate of around 6%.

Formulas: How to calculate the total final price of a good or service? How to charge the sales tax to the selling price?

  • "Sales tax amount" = "Sales tax rate%" × "Price without sales tax"
  • "Sales tax charged price"
    • = "Price without sales tax" + "Sales tax amount"
    • = "Price without sales tax" + "Sales tax rate%" × "Price without sales tax"
    • = (1 + "Sales tax rate%") × "Price without sales tax"

Example on how to calculate the Sales Tax

  • Let's say that a person who lives in an area where the sales tax rate is 5% bought some cider for $50 dollars, then that person would have to pay a total of:
    • 5% × $50 = 5/100 × $50 = $250/100 = $2.5 dollars in sales tax.
    • And the total bill containing the sales tax would be in the end: $50 dollars + $2.5 dollars = $52.5 dollars.

» Read the full article > Sales Tax: What is it and How to Add it (Charge it) to the Listed Selling Prices (Before Tax)

» How to Reverse Calculate Sales Tax Out of The Final Price (With Tax, After Tax)