I think the dog formula comes in patties.
Now, are you talking about the small single serving sizes? Those packages are .8 ounce (8 tenths of an ounce.)
The .8 oz single size envelope is, so they tell us, equivalent in nutrition value, to a 3 oz can of food (plus hydration of course). Okay, so I figured all my numbers out and determined that .2 oz (that is point two or two tenths) of an ounce of S&C dry is equivalent to one fourth of a three ounce can, or .75 ounces once hydrated.
Since I use weights, I have to rethink things to figure out what you are feeding......okay here we go
You say lucky is eating 3/4 of an .8 ounce package, three times a day? That would be, in canned equivalent, 2.25 ounces of food per meal. That means she is eating in total 6.75 ounces a day, in canned equivalent. So yes, she was getting enough food, even taking into consideration that your averages, since you are going by visuals, may be off a bit.