We continue to have internal discussions about whether we should give this guy the $500 reward. My advice would be to add up the hours of the people who have c

We continue to have internal discussions about whether we should give this guy the $500 reward. My advice would be to add up the hours of the people who have contributed internally to this discussion and then multiply it by their hourly rate, then try and add in the rough cost of the delay from these people not spending time on their current projects, add a 30% fudge factor for organisational overhead, add on the $500 that you owe anyway, then double the result and pay that, just so you don't feel like doing this again.