Added the second failing test for flat markup calculation
modified flat markup test, no need to add results to the base price
calculateFlatMarkup implemented
Failing test added for calculatePerPersonMarkup
modified test for calculatePerPersonMarkup
implemented calculatePerPersonMarkup
added failing test for getCategoryMarkupgetCategoryMarkup
implemented getCategoryMarkupgetCategoryMarkup
added unit test for calculateCategoryMarkup
implemented calculateCategoryMarkup
implemented calculate
Cleaned up the code a bit, and went to volleyball :)