98 fractional saturation or 98% of the myoglobin is saturated in the lungs, which is the same value as for the hemoglobin case. But look what happens when we go down to this value which corresponds to the resting tissue. There is only a very, very small drop in a fractional saturation of myoglobin when we go from the lungs to the resting tissue, about 1% difference. And that means only about 1% of that myoglobin has successfully unloaded that oxygen into the tissue. And that's a very, very small amount. It's simply not enough for those cells in the resting tissue to actually use the oxygen to create enough ATP.