How do you calculate tax percent?

To calculate the tax percentage on a sale take the total sale, subtract the price of the item, then divide the result by the price of the item. Fpr example

a $1.00 item is purchased, the total sale is $1.10, subtract the $1.00. $.010 was paid in tax, to determine the tax percentage paid divide $ .10 by the

$1.00 item price and you get a .10 tax rate (or 10%).

( total purchase price - price of item ) / price of item = tax percentage

Be aware that on some sales only a portion of the sale is taxable, such as a take out order from a restuarant only the carbonated beverage may be taxable.