I do agree... all labels SHOULD list PG/VG ratios, as well as % water content and Nicotine %.
My favorite B&M obviously has an outside source for their "house-label" juices, but they provide ratio info by label color. Red = 80/20, White = 70/30, Blue = 50/50, and Black/Grey = 30/70. Their juices are better than most that I've tried from online (good flavor, and consistent flavors), and they also have many of the "Big-Brand-Names" at Internet prices... so no need to pay shipping