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.
William Sydney Porter, otherwise known as O. Henry, is released from prison on this day, after serving three years in jail for embezzlement from a bank in Austin, Texas.