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A shopper wants to ensure he has enough cash to purchase a $17 remote control car, so he asks a clerk what the total will be with the sales tax included. The clerk tells him the total will be $17.68. What is the sales tax percentage?

Write your answer using a percent sign (%).

The difference between the total price and the original price is the sales tax amount. Therefore, the sales tax amount is $17.68 - $17.00 = $0.68.

To find the sales tax percentage, we divide the sales tax amount by the original price and multiply by 100:
($0.68 / $17.00) x 100 = 4%.

Therefore, the sales tax percentage is 4%.