Question

The sales tax for an item was $19.80 and it cost $330 before tax.
Find the sales tax rate. Write your answer as a percentage.

Answer 1

Sales tax = $19.80

Cost of item before sales tax = $330

Cost of item after sales tax = $19.80 + $330

= $349.80

Sales tax rate

$\frac{19.80}{349.80} \times 100\% \\ 5.66\%$

So rate of sales tax is 5.66%