There are a few themes there. First theme is between a person and the society. Antigone wants to bury him even though the representative of the society, which is the King, forbade it. She does it anyway and shows how an individual fought the system which she believed was wrong and corrupt.
Another theme is the divine law versus common law. Creon represents society and the law of the people while she was burying Polyneices according to Greek tradition based on their religious beliefs. She sticks to divine law over local law because she believes that Creon is wrong.
If they up sell by 27% you would need to take the original price of $325 and find 27% of that. To do this, multiply 325x.27 (.27 is 27% converted to a decimal) which is = to 87.75 you then need to add $87.75 to $325 which will get you $412.75.
