Welcome to Cattle Today... first thing, please go to your name top right, down to account details, and down to location... put in state or something... you will see it on others avatars... that has a little to do with answers to some questions.
Every sale barn is different, but they have similarities...
If a group comes in, they are usually sold as that group... price per pound x total lbs... Unless it is a baby calf, the only other ones that get sold by the head are often bred cows, or cow/calf pairs... or breeding bulls. And the weight will be on the wall. That enables a person to get an idea of what the price per lb would be...
Occasionally they will bring in a group, say 20, and they will say Gate cut... so you say only want 3, if you are the top bidder, they will let 3 out... NOT your choice... but the first 3 out the gate...
With the high prices right now, it doesn't happen often.
Many sales will sell 1 or 2 or 3 at a time... for a bunch of different reasons... I brought in 6, 1 was a different size or color, so they will sell it separate.
My suggestions echo
@Brute 23 ... find a neighbor... and get one or 2 that has not been hauled to town.. not exposed to the multitude of germs... ask if they have one that has a bad eye, say from pinkeye... it will hurt them a bit, at the sale, and the neighbor might take a bit less to sell them direct, to you. It won't hurt the meat at all...