Difficult to say from the description you gave. And ultimately it may depend on your career goals. Are you a cut 245? Or do you have some beef to spare? Cutting 40 pounds isn't easy and doing it in a healthy manner would require you to lose a solid 20 of those pounds naturally, prior to "cutting weight". If you are a solid 245, cutting that weight might actually be very difficult and could actually be more detrimental to your fighting career as you would be losing a significant amount of muscle.
If you plan on making a "career" out of fighting cutting that weight is an option as long as you are able to do it in a healthy way. If you are doing it as more of a hobby then I am not sure cutting all that weight is worth it.
Also, how old are you?
Team Stand Alone #1