Help for calculating the correct marked price?

Question

A) For this equation I need help calculating the marked price.

A retailer wants to make a 22% profit on the sale of a television set. The television set cost the retailer $560.

What should the marked price of the TV be?

Silly enough as it is, I'm having a complete mind blank and can't seem to wrap my head around this question. Help would be great and a big thanks in advance!

EDIT: Stupid me figured the second question out, turns out it was very simple and I was just over analyzing.

Answer 1

Hint

Say that the cost for the retailer is $C$ and that he makes a profit of $x$ %; that is to say that to $1$ he pays, he adds $x$ percent. So, the sale price looks to be $$P=C \times (1+\frac{x}{100})$$

I am sure that you can take from here.

Answer 2

Hint for B): The discount is $\$220 \cdot 0.3$. And the new price is $\text{original price - discount}$.