Crystal report comments/modification

Need expert Crystal Report 8.5 coder to modify and make detail comment. POS report to show line discount %, discount amount, total discount%, total discount amount. Total of number of item(s) sold. Sales reptort to comment and explaing the logics. You need to comment every few lines and they should be understandable even to a non-coder like myself. Also each function should have a header stating it's purpose. ## Deliverables Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. Complete copyrights to all work purchased. ## Platform pc