When Bank foreclose a property, they do not necessary recop the loan. So the acceptable foreclose price is less impected by loan amount. It has to do the condition of the property, market price, regulation on booking the loss, maintainence cost, company policy for acceptable loss... In most part, the local agent who handles the property has huge influrence on the price. (This is where you can get good deal from insider.)
If the loan is FHA backed loan, bank can sell it to FHA and book the loss.