While Myoglobin has a much greater affinity for oxygen, and it is much better at actually storing that oxygen until the partial pressure of oxygen inside our tissues is extremely low, So once again, according to the hemoglobin curve, the percent saturation of hemoglobin in the exercising tissues is about 32%. However, the percent saturation of myoglobin in the at the same partial pressure value of 20 mmhg, is equal to about 91%. So if we find the difference in percent of hemoglobin and the difference in percent of myoglobin between these two points between the lungs and the exercising tissue, then for the case of hemoglobin, we have a difference in 66%, which basically means there will be a change in 66%. So 66% of our hemoglobin will fully unload the oxygen to the tissues of our body, but only 7% of the myoglobin, this difference here will unload that oxygen to our tissues. So this information tells us that myoglobin binds oxygen much more tightly than our hemoglobin does. And this means that myoglobin would not make a very good oxygen carrier inside our blood because it will not be able to effectively and quickly unload our oxygen to the exercising tissues of our body that require that oxygen.