This could mean...
1) Do what your heart desires, if your heart wants to do something, do it.
Answer:
Prior to the start of Oedipus Rex, Oedipus has become the king of Thebes while unwittingly fulfilling a prophecy that he would kill his father, Laius (the previous king), and marry his mother, Jocasta (whom Oedipus took as his queen after solving the riddle of the Sphinx).
Explanation:
You take 800 times 22% so .22 and you get 176 move the decimal over one place and get 17.6$