Or 8% of that oxygen will be unloaded to the tissues. Now, if we compare to the hemoglobin as it is present inside red blood cells. The corresponding y value is around zero point 32 so that means 98 -32 gives us 66%. So 66% of that hemoglobin will unload and release the oxygen into the cells found inside that exercising tissue. And this is a big difference between the pure hemoglobin case. So what that means for some reason, the hemoglobin, when it's present inside red blood cells, the affinity for oxygen decreases.