and apparently, considering that we need to delete some island but also add others that have holes inside, we have around 25% of land (24,8 exactly ). It's a difference of 8,3% form earth, and roughly the size of North America. Sorry, I'm just surprised that we should add a whole continent while it's seems fine. It's the size of the central eastern continent, excluding surrounding islands but including that most gaps are filled. look it's the size of the orange spot:

Attachment 66351

There is enough room for a new continent if you are interested.