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. Make sure you put the sales tax into decimal form. You do this by taking the percentage and sliding the decimal point two places to the left: 7.5% sales tax becomes .075 in decimal form 3.4% sales tax becomes .034 in decimal form 5% sales tax becomes .05 in decimal form Example: $60 (item cost) x .075 (sales tax) = $4.5 total sales tax
This can be done easily in a few ways. One, you could do equivelent fractions as this. 16 percent is the same as 16 over 100, or, 16/100, 100 being the total with an = sign with X over 550, or, X/550. you can multiply 16 by 500 and divide by 100 to get $88. Or you could do it my way, (prefered way). take the $550, divide it by 100, then multiply by 16 and get $88. either way you do this, you take away the $88 from $550 and get the sale price of [Drumroll please...] <em><u>462 Dollars!</u></em>
