For me, it is what the market can bear. It's just that simple.
I try not to intentionally have more chicks or POL pullets than what I need, but sometimes? You guessed it, things happen and I have a few to sell. I know I probably have $4 in a 5 week old chick, for example. I often cannot get more than $3. Yes, it is a loss, but what am I to do? If I keep it longer, my investment gets even larger and the sales price won't really catch up. A pullet at point of lay (POL)??? Same thing. I'm sure, because I've crunched the numbers and know that $14 is likely "break even", but again, what I may want and what the market here can bear might not match. I know if I sell them for $10, they will sell. If I try to hold on for $14 or $16 to break even, it MIGHT happen that they sell, but it might not.
This is agriculture and while I may want a certain price, I do not have show quality stock, so I have to accept certain realities. Chickens don't ship well long distances, so I am "stuck" with my local market conditions. Best regards.