A 498 is very low and you will have little to no chance for MD. You have a very very small chance for DO with a 498 and at many DO schools you will not make the automatic cut offs. There are lots of discussions of which schools have cutoffs on SDN. Every year the standards get higher for MCAT admissions. Google the AACOM MCIB and look at the averages (they aren't decreasing). What are your actual sgpa scores? pattern in past year or 2?
The percentages in the charts can be very misleading as that may have been true 2 yrs ago but the numbers getting in with a 498/23-24 this cycle will be significantly lower. The data also doesn't show the exceptions that helped those get in with low scores in the past. Some have lots of healthcare experience, URM's, connections, unusual EC's, etc. There is often an extraneous positive factor that gets people accepted with lower scores.
Most people don't like my saying this, but the challenge is that almost everyone thinks that somehow their background, gpa, experiences, etc makes them an exception. However, most people are not the exception thus why 60% of people don't make it in! I didn't see much to make me say wow on your EC's/work/exp in what you posted so far. Your gpa is strong for DO, mostly avg for MD. DO you have DO experiences and LOR? If not that's a big negative.
If you do poorly on standardized tests then you will have a problem with steps/boards, which are critical to your med school/residency success. A school will not do anyone any favors letting someone in who wont pass. So what made your MCAT so low? Sections all low across the board or was it one that torpedoed your score? (e.g. CARS like a 16th %ile?) Did you take Biochem? To maximize your chances you need to retake the MCAT, BUT the worse mistake you can make it to retake it before you're ready.
I'd really need much more info to say what type of chance you'd have to get accepted at a small handful of schools or what you would need to do to fix your MCAT.
Good Luck
