Well according to a recent report in The Wall Street Journal, it has been estimated that the Moto G costs about $123 to build. It should be noted that this price is probably just for components, and that there are other factors that goes into the pricing of the device. This includes marketing, research and development, shipping, and etc., which according to the report, leaves about a 5% operating profit margin for Motorola after taking those into consideration.
Having a profit margin of 5% is pretty low, and this is compared to the likes Samsung and Apple, where high-end flagship devices have an operating profit margin of 28% and 30-35% respectively. We suppose this is how Motorola plans on competing with other companies, and it’s not surprising given that Google subsidizes their products pretty heavily as well.