Help setting up feeding schedule

After reading all kinds of contradicting information online about when and how much to feed a cat I have no idea how much to feed her.
Now my cat Sugar is a one year old female domestic shorthair weighing in at 6.6 pounds. I have dry food it Purina's indoor cat with hair ball help. After she finishes that I want to switch her over to wet food like friskys of the combantions.

You generally want to feed enough calories daily. The typical recommendation is 20 to 25 calories per pound of ideal body weight daily. So your 6.6 pound cat may need approximately 132 to 165 calories daily (not per meal).  Your cat may need a little more or less than that so adjust as needed.

165 calories is typically one entire 5.5 oz can of food. You can split that can into a few small meals daily. There is no one feeding schedule that works for everyone and their cat. Definitley feed breakfast and dinner.  A small lunch is ideal. A bedtime snack helps keep a cat's tummy happy all night so you're not bothered by a hungry cat in the middle of the night. A programmable timed feeder such as this one will  give your cat a meal if you aren't home during the day and/or don't want to get up in the middle of the night.

The Purina One hairball dry food has 416 calories per cup, http://www.petobesityprevention.org/wp-content/uploads/2010/05/Cat_Dry_Food.pdf I recommend going slowly with the diet switch to canned food. Canned foods are a lot lower in calories and too much a calorie reduction too fast can result in fatty liver disease. You may hav to feed some dry food along with the canned food for a little while and then slowly eliminate the dry.

Here are some charts to find calorie content in canned foods:

http://www.petobesityprevention.org/wp-content/uploads/2010/05/Cat_Canned_Pouch_Foods.pdf

http://catinfo.org/docs/FoodChartPublic9-22-12.pdf