I use to work at the local feed store and we sold the 25# bags for around 18.95 and I've used it and the deer liked it.And we got good response from the other buyers. They say to use one 25# bag per acre.What I do is find a main trail then follow it till I find several branching trails and put it along that area.Other users told me that it took them a couple of years to notice a differnce in the deer that was using it. I've found that they will use that pile in the summer to early fall.