Nicole S. answered 02/22/18
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Versatile Teacher Specializing in Core Academics
Hi Franchesca,
To complete this problem, you just need to know the formula for how to calculate the percent. To find a percent, you are using a fraction (part/total) and multiplying it by 100. In this case, the numerator will be the sales tax and the denominator is the cost of the item before tax. When you divide sales tax by the item cost, this will give you the tax rate percent as a decimal. The final step is just multiplying by 100 to get the percent.