hpw portion depends on which type.
original hpw with wombaroo is 1 tablespoon for 2 gliders.
critterlove hpw I think is double that 1 tablespoon per glider.
I use critterlove salad mixes with the hpw. it calls for I think 24 grams per glider of fruits and veggies.
I would suggest looking into those salads as they have a lot of research to be healthy and balanced for the gliders.
I used to measure the fruits and veggies but found a handful of fruits and a handful of veggies was the right amount for 2 gliders, the gliders finish off the corn, peas, green peas. but leave some of the other stuff, I just throw it out in the morning. I use happy glider pellets also.
as long as its healthy diet i would be ok with some leftovers. could be eating less because of new home.
also some of the stuff like green beans look uneaten, but they take out the center part and eat that. some of the peas look uneaten but are eaten.