The story "The Origin of the Robin" suggests that parents' words are held at very high regard. This is how Ojibwa views the parent-child relationship. In the story having a very high regard of the fathers' views, the child followed the father's dictate to the extent that the child came to harm. He died and became the Robin.
So you subtract the fractal amounts from the whole with all of his customer being 1 and adding all the fractions 1-(1/8+2/5+3/10) 1-(1/8+4/10+3/10) 1-(1/8+7/10) 1-(5/40+28/40 1-(33/40) 1=40/40 40/40-33/40 7/40 of his customers chose a natural finish