Price per diaper/wipe?

I’m a pretty avid couponer so I like to know general prices per item so I can get in my head what is a “good” deal and otherwise. I’m a FTM so I have no idea where to start on diaper/wipe pricing. I know it depends a lot on store/brand/location/package size etc., but ballparking helps me a lot. Right now I have an estimate that $.25/diaper and $.02/wipe is a pretty good deal over regular price for name brand Huggies/Pampers types. Can anyone else help my estimates here?