Hmm, so my current sale price on that beef is $16.83 and as the other person pointed out a 3 oz before-grilling burger is well below what anyone would be satisfied with. So at most I'm making 15 burgers with that and that's not including tax. If you're going back to 2007 for those $1.50 buns can you buy me a truck load or two while you're at it? Even the store brand here on sale are $1.79 and again that's not including tax. Bringing our pre-tax total to $22.20... shall I continue? Everyone I know who eats burgers prefers cheese on them so that a few more dollars on top of the other toppings/condiments too.
Either you live somewhere even cheaper than the small town I'm from, significantly, and also do not pay sales tax, or from where I'm sitting there is not way in hell you're making 20 burgers with $25. That's not even if you skimp on the meat, get everything on sale, and provide barely any toppings. To be honest with you, the last time that ratio seems possible was like 10-15 years ago.