This is what we call the Bore effect. So part of the part of the Bore effect tells us that CO2 molecules will bind onto special regions on the hemoglobin molecules and that will essentially form salt bridges and that will stabilize the T state structure of the deoxy hemoglobin and that will essentially decrease its affinity for oxygen. So how many or how much, what percentage of the CO2 molecules will bind to hemoglobin? Well, about ten to somewhere around 14% of the CO2 molecules will actually bind to hemoglobin. So for our discussion, let's assume that it's 10%. So that we're dealing with a single value.