The scratch I get is milo, cracked corn, and a bit of wheat. To this I added wheat and oats, then the soybean. I have it figured that it's probably over 20% right now but I may be a bit off because I don't know the exact mix in the scratch, naturally, since it isn't labeled as to exactly what's in it. I think mine is really higher than I figured though because I went by volume instead of weight for the amounts. DUH. Soybean meal is tons heavier per measure than the other is, especially the whole unhulled oats. Mine pick out the wheat first, by the way. Guess they all have their own likes.