Answer: 8%
Step-by-step explanation:
Given : A shopper paid $432 for an item marked $400.
i.e. Marked price = $400
Paid Price = $432
Then, Sales tax amount = Paid Price- Marked price
i.e. Sales tax amount= $432 -$400= $32
Now, the percent of the sales tax is given by :-
[tex]\dfrac{\text{Sales tax}}{\text{marked price}}\times100=\\\\=\dfrac{32}{400}\times100=\dfrac{32}{4}=8\%[/tex]
Hence, the percent of the sales tax = 8%
