What decide how much the game giveaway add to level progress ?

im new here but i think sgtools can help u!

https://www.steamgifts.com/about/faq

Contributor Value and Levels
What is contributor value?
Contributor value is a number that estimates the value of your giveaways within our community. When you give away a game, and the winner marks your gift as "Received", the value of the game is added to your contributor value. If your giveaway was assigned "No Value", or "Reduced Value", the value of the game would be adjusted prior to being added. There are also two other factors that may influence the value of your giveaway.

After you give away a game 5 times (whether in the same giveaway, or in multiple giveaways), it will begin decreasing in value. The value is decreased by 10% for each additional copy. This means if you decide to give away 8 copies of a $10 game, it would add $74.39 (10 + 10 + 10 + 10 + 10 + 9 + 8.10 + 7.29) to your contributor value. This has little effect on the majority of users, but prevents individuals from receiving a high contributor value from gifting a large number of promotional gifts, games obtained through pricing errors, or keys from contacting game developers.

If a giveaway is invite only, region restricted, or limited to a whitelist or Steam group, it will only add contributor value if it receives 5 or more entries. This is in place to prevent small groups of friends from attempting to cheat the contributor system, and to encourage users to expand the reach of their giveaways. The whitelist feature offers an easy way to target a larger audience, and you can combine it with small Steam groups to receive a greater number of giveaway entries if needed.

If you hover over the "Gifts Sent" dollar value on your profile, you'll see your contributor value after all of the above adjustments have taken place. You might also notice that games valued over $50.00 will only require 50 points to enter. However, their full price will be used when calculating contributor values.

What are "No Value", "Reduced Value", and "Full Value" giveaways? How do they affect my overall contributor value?
When creating a giveaway and selecting a game, you'll notice "No Value" games are marked with a double asterisk (*), and "Reduced Value" games with a single asterisk (). If you hover over those icons, you'll see the effective date for the value adjustments. For example, if a game is marked with a single asterisk (*), and hovering the icon shows "Reduced value since January 4, 2018", this would mean giveaways created for that game on January 4, 2018 or later will receive reduced contributor value. Games typically receive no value or reduced value when they're featured in bundles, heavily discounted, or available for free in online promotions. Their values are adjusted this way to better represent their true value. Keep in mind, the asterisk icons are just for reference, and the value of a game can be backdated if we need to make retroactive changes.
Games fall into one of the below three categories.

No Value:
No contributor value when given away after the effective date.

Reduced Value
15% contributor value when given away after the effective date.

Full Value
100% contributor value when given away.

If you visit your profile, you can see a breakdown of your previous giveaways. If you hover over the "Gifts Sent" number on your profile, you'll see the number of gifts you have given away in each category.

For example, you give away three games. Game A is $10.00 and it has no value. Game B is $20.00, and it has reduced value. Game C is $50.00 on Steam, and it has full value. Once your giveaways have ended and the gifts have been received by their winners, you will see the updated values on your profile. In this case, you would see "Gifts Sent: 3 ($80.00)". This would show that you have successfully given away 3 gifts, and their current list price on Steam is $80.00 in total. If you hover over the number of gifts, you would see you have one "No Value" gift, one "Reduced Value", and one "Full Value". If you hover over the dollar value, you would see you have a contributor value of $53. It would be calculated as 0% of the gift with no value (0 x $10.00 = $0.00) + 15% of the gift with reduced value (0.15 x $20.00 = $3.00) + 100% of the gift with full value ($50.00).

What are levels, and how can I increase my level?
Levels range from 0-10, with level 0 being the default after registration, and level 10 being the highest level attainable. Levels represent a user's contributions to the community. At their core, they are calculated based on a user's contributor value. When a user creates a giveaway that's received by the winner, their contributor value and level increases. This allows the user to access additional giveaways that are restricted to higher levels. If you mouseover your level in the navigation bar, or the level on your user profile, you'll see a tooltip with the level rounded to 2 decimal places. This will give you a better idea of small increments in level, and when you're about to level up.

Levels increase in difficulty almost exponentially. Below is a summary of levels and their corresponding contributor values.

Level 0: $0.00
Level 1: $0.01 - $25
Level 2: $25 - $50
Level 3: $50 - $100
Level 4: $100 - $250
Level 5: $250 - $500
Level 6: $500 - $1,000
Level 7: $1,000 - $2,000
Level 8: $2,000 - $3,000
Level 9: $3,000 - $5,000
Level 10: $5,000+

It's a bundled game, so you'll get roughly 15% of its cost in USD. This means that if the game costs 60 USD, you get 60 points, or 15 if bundled, 0 if it was given for free.
https://www.steamgifts.com/about/faq

Also if you want to give away games from the Humble Choice, I suggest you to check the monthly thread
https://www.steamgifts.com/discussion/ZpnX7/humble-bundle-february-2024-humble-choice-51-8-coupons-from-ign-rewards