on my d-76 pouch of concentrated powder it says there is 14.6oz, but i measured 10oz. so what i did was put 5oz and treated it as though it was half of the package and mixed my developer accordingly (it says the package of 14.6oz will make 3.8L, so i just took half the package and made 1.9L). the negatives turned out normal (which would be 7.3oz), but what's up with that? does the powder get more dense with time or something? it may seem trivial as i just treated it in terms of percentage and it worked out fine, but if i used a different form of measuring it could have been horrible.