And if we multiply this by 1000, that gives us the value in millivolts. So, 62 millivolts is the electric potential difference between the two sides due to these sodium ions. So, if we omit all the other ions that are present across the two sides, then what that means is in such a case, the resting memory potential of that cell would simply be equal to positive 62 millivolts. But we know we have other ions present across the cell membrane. For instance, we have this potassium. So let's carry out that same procedure with potassium.