I am in the same boat as you are. My phone has been off the charger for 4 hours and 44 minutes and I am down to 64%. Today I have only done text messages, checked emails, and replied to Facebook posts. 40% in 5 hours seems a bit much to me. I have noticed that the location icon kept popping up, so now location is turned off unless I need it. It's just a pain to have to keep turning it on and off. I, like you, took my phone back to the VZW store to see if there was a problem. I was losing like 5% every 30 minutes with the phone being locked. The manager said that was normal for all phones. I had just come from an iPhone 5S, and that was not normal. I've given up on looking for a solution, I just have a freaking charging cable at home, work, and in the car, and plug in whenever I can. I also bought an extra battery. I've read where some thinks it's a bug with the 4.4.2 software and it should be resolved with the 4.4.4. But who knows how long that will take to make its way down to us. Verizon is terrible about updates and who knows if that will even work.
If I am playing games or watching videos, the battery will drain fast, which is to be expected, but if I am just texting and checking FB, there is no reason that I should lose 40% in 5 hours. My android system is at 26% usage. That just seems high to me.