And then we plug in 143 millimolar for the X out. And so because the natural log of a ratio that is less than one is negative, this negative value becomes a positive. And So We get a value about positive zero point 62 volts. 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.