That's exactly what we calculated. We calculated for each of the y values and then we summed them all up. It's 22.75. It is equal to 22.75. So if you wanted to know, so this is essentially the error that the line does not explain. This is the total error, this is the total variation of the numbers. So if you wanted to know the percentage of the total variation that is not explained by the line, you could take this number divided by this number.