I did the following f (612) - f (1273) = -661
2006 - 2001 5
and I got -132.2 as average decrease of discharges per year of number of gay men and lesbians from the mlilitary. is that correct I was doing a rate of change type of problem. reason why I ask if correct is because my scientific calculator acts funny. doesn't always give me the right answers and then I switch to a very old one, and that one makes things different too.