If the sales tax in you city is 4.7% and an item cost $164 before tax how much tax would you pay on that item round to the nearest hundredth or cent

So far I used a Sales Tax Calculator and I found out the sales tax would be 
$7.71 cents.

I could copy the answer for prooSales Tax Calculator
Enter Cost/Price:164 
Enter Sales Tax %:4.7
Total Tax:7.71
Total Cost/Price: