Answer:
The answer is 0.71 per ounce.
Step-by-step explanation:
You can use proportions to solve this.

The polynomial remainder theorem states that the remainder of the division of a polynomial
by
is equal to
.
Therefore

1 percent of $270 is 2.70 (you just move the decimal point). then multiply your 1 percent by 24 and you have the answer. I get $64.80, doing it on paper.
Add the 24 percent to the original price and you have your retail price: $334.80. If you have a calculator, check my maths.