Formula Feeding

I am formula feeding my 2 month old and she currently takes between 560ml - 700ml a day - this is well below the recommended amt for her current weight/age (735ml) but she seems to be content after each feed (not able to take more when offered), gaining weight steadily (according to her last weigh in), and producing adequate wet and dirty diapers. Should I be worried? Anyone has a similar experience with their baby?