Based on my experience with bug bounties and pen test platforms, I have learned that a well-written report will make a major difference to your success. Over the years, I have developed a clear understanding of how to report flaws in a program and which flaws to report. This has led me to formulate a format for reporting, but this format is not universal and it may vary from person to person and case to case. But, it is something that you can adopt for clear reporting.