Hard to be positive without knowing the details exactly, but the way you put it I think that 1691 is supposed to be your goal calories assuming that you do exercise that much. Also, 2091 sounds like a whole heck of a lot for just about any woman to lose 2 pounds per week on, that's another reason I expect it to be 1691, assuming exercise. (And less if you stop for more than a day or two.)
It's also very similar to my own rough totals when I was both exercising about 400 calories most days and losing about 1.5 pounds per week. So again, I think that's what it means.
Height 5'8 1/2"
GW: Originally 150. Maintaining at about 146 since June 2013.
5K 4/21/11: 31:55
|45 Maintenance Weeks