Gave away 7 games with no Value increse

With all due respect, you're not. You have no idea what you're talking about.

Close, you forgot to include the square root of pi in your calculations.

that would help if I did get the first 25$ but really it did not go up at all.

Well, if you read the link I posted, it would explain everything you want to know.

you can only have 20% of your contrib value from bundles games

$25 bundles (without penalty) + 2 romes ($20) aprox
you can only gain ($45 aprox *0.2 ) = $9 extra with bundle games

Yes in the past, but the rules were changed to prevent this abuse.

You spent 1$ for each bundle and expected to get the full price of each game? Gladly this exploit was fixed before people boosted their contribution values too high.
It's only meant for people to give away bundle leftovers. If you really want to contribute a bundle, select the full bundle as the gift and get the appropriate contribution value for it.

Wasting your time/money? You give away games on this site because you want to o_o''