If you look to your right, you will notice that the page count meter says "40/40, 98.8 %".
Now math was never Word Nerd's favorite subject, but she knows enough to know that 40/40 should be 100 %.
Here's the deal: The page count meter application, doesn't like halves of pages. Word Nerd input 39.5/40 and 40/40 is what she got. The percentage is correct.
What this truly means is that yes, Word Nerd is currently 1/2 page behind her monthly goal and with a busy weekend, squeezing in the last 1/2 page could be difficult.
Why stop so close to the goal, you might ask? Well, it's one of those tricks of writing. Stop in the middle of a scene where you know what happens next so that the next time you sit down to write, you have a place to start. So, Word Nerd knows what's coming and it was better to stop with a 1/2 page left.
And since part of the page count meter says she made it, who's really counting?