well, the way i figure it is:
the average omnivore eats at least one piece of meat a day, if not more. let's say that the average is one meaty meal a day. so that's 365 meals a year, which is 365 dead animals.
but considering that they may eat leftovers for a few meals, it's less than that. let's say that the average leftovers or packages of meat with multiple servings in them last about 4-5 days (since carcass spoils so quickly).
365 divided by 4.5 = 81
i think between 83-90 is a good estimate, counting in for spoilage, waste, and eating out (which is extremely wasteful).
that's my equasion.
"I remember the days when we talked for hours/And we were young, we thought we had superpowers/We weren't our problems, our age or our paychecks/And we weren't taking anybody's $h*t."