But that is not the case. Why? Well, it turns out that some of the K plus ion channels are actually open, so they're more permeable to the K plus then the sodium channels are permeable to the N A plus. And so this causes the leaking of the positive charge out of that cell because some of these K plus odds can actually leak out through those open channels. And that basically makes this value more negative. It decreases it to a value of around negative 70 millivolts.