I don't know if this is the case in the US, but a lot of food products here in the UK have a version of the nutritional information which is "prepared as directed". Breakfast cereal is often shown as "x grams with y ml semi-skimmed milk" for example. Is your tea doing something like this and giving you values for brewing it and adding a splash of milk, perhaps?
For Tazo Awake English breakfast tea the label says "based on tea brewed with freshly boiled water for 5 minutes (no milk, no sugar), an 8 fl oz cup typically contains insignificant amounts of calories, fats, carbohydrates, sugars, protein and sodium".
Seems weird for yours to have such a significant difference even if its a slightly different type, could you post an image?