I'm purchasing a large game from the Play Store called Gangstar Vegas. And it's a huge game, the file size is about 2.5 GB. After leaving my phone downloading it for about an hour. I noticed something interesting, a glitch. From the notifications drawer, it was showing that the game was downloaded 83%, but in the my apps section in the play store, it was showing the game as only 55% downloaded. This is a contradiction! So basically, the the notifications drawer thinks the app has been downloaded 23% more than the what the play store says. And when we're talking about 2.5 GB app, 23% is a lot. Take a look at the screen shots, these two screenshots were taken about ten seconds apart. This is on my Nexus 4 running Android 4.2.