Steamgifts level

The things that affect the level of your profile, through 'experience' or contributor value of a giveaway you create is based off of the normal non-discounted price of the game, whether that game is considered bundled or not (ie has received ~95% discount at one point) or has been given away for free.
non-bundled=normal price of game
Bundled=normal price of game X (0.15)
Free= 0

When creating a giveaway it will indicate with * if the specific game is bundled, and ** if it is considered a "free game" or was give away at some point.

An example would be if you were giving away a $10 game, if it was non-bundled you would receive 10 CV, if it was bundled you'd receive 1.5 CV, and if ti was given away free at one point it would give 0 CV.

FAQ I believe has all of this and more on numbers probably better than I could explain but I hope this helped. Hope you're enjoying the site :)

public giveaways don't require more than 1 entry to give you cv, unless they are region-locked.
region-locked, whitelist, group, invite-only need 5 or more.

Probably a good starting point would be the FAQ linked under "Help".
Especially the question:
"What are levels, and how can I increase my level?"