Ok, XeroX2 i try to make an strict on topic post.
First option: Doer made an progress calculator once:
http://esi.coolinc.info/progress.cgi
I don't think it is maintained at the moment with all the new and changed skill names. But it might at least work with the classic professions except MF.
So as you are at approx. level 45 (?) you save a skill set with Jdegres scanner and then do at least 1K active* costs turnover. Then you take a skill snap shot again and use the tool.
* active costs = ammo, gun decay without MU, amp decay. All those 3 parts contribute to attack skill gains (actually seems to be based on the damage dealt but thats another discussion)
Second option: If that does not work we beg or bribe Doer to update the calculator.
Third option: If that does not work we beg or bribe Jdegre to make an new progress calculator.
Forth option: We could simply compare relevant TT volume of skills from an lvl 45 dmg avatar and an lvl 80 avatar. Then multiply the TT difference by 100 and would have an fairly good estimation of Peds turn over needed for the progress.
But i can already tell you the difference will be in the 15 to 20K Ped TT value range for natural skilled avatars, and that means about 2 million peds turnover.
Just as example my combat related skills are 26850 TT, thats 92+ in both Laser and BLP though. So lets subtract the TT value of BLP and Rifle, Melee and some other stuff and assume i would have just skilled Laser Pistol and we end with approx. 22800 TT in general combat and contributing to Laser Pistoleer skills. Now the difference between level 80 and level 92 is not that big at least for damage professions as a good junk is contributed by KS. But lets say 20k for an level 80 avatar.
Now i might be wrong, but i guess at level 45 avatar has what 3 or 4K TT skills in hunting skills? Someone can confirm please?
So we have an very very rough estimation that shows that a turnover of at least 1.6 million must be done.
Btw. i estimate the turnover i will need from 92 to 100 at about 600k, just to give a picture.
Edit: Ah, and it is said the turnover to skill from zero to 100 in one category is approx. 3.3 million. If thats true then our figures work out more or less.