I've used ☼ÐiöGØØØ☼'s 100% Save File and there are some changes of my version from the Save File.

☼ÐiöGØØØ☼'s Save contains:

• Main campaign 100%
• All side quests complete (except for 2 that are bugged for me, can't do nothing about)
• All Master Roshi's Challenges 100%
• Z-Encyclopedia 100%
• Maximum level in all communities
• All characters skill tree 100% (supports included)
• Both vehicles are at maximum level (50)
• All races completed in First place with both vehicles
• First place at all 4 baseball challenges
• All Dragon Ball Z wishes used (except for the 3 that you can repeat infinitely)

Mario_TV's edited Version of ☼ÐiöGØØØ☼'s Save contains:

• All (Normal) Fighters are on LvL. 250
• Max. Zeni
• Max. D-Medals
• (I think) All Items have 999x Stocks
• Max. Z-Orbs
• Z-Encyclopedia 100% (Readed, without Marks)    
• Max. Freindship Level of soul badges (Not all are Gold, but everyone has Max. Level)
• Everything from ☼ÐiöGØØØ☼'s Save
• UPDATE: All Side Quests are completed (with DLC Side Quests)!
• UPDATE: (I think that) All MAIN Fights have the S-Rang!
• All DLC-Fights finished

• Super Saiyan God + ALL God Attacks

To Do:

• Get all rewards for the dlc battles!

Note: I used some DLCs, please test the save if it works. Thanks.
IMPORTANT: Please Backup your Original Save, because i don't know if your save is broken!!!

1. Steam-Installation:
   

Go to the "Steam-Save" Folder and then you open the "remote" Folder.
There's the "ManualSaveX". You'll have to rename the File. Rename the File into a Save Slot, that you want to use.

ManualSave0 = Save Slot 1
ManualSave1 = Save Slot 2
ManualSave2 = Save Slot 3
ManualSave3 = Save Slot 4
ManualSave4 = Save Slot 5
ManualSave5 = Save Slot 6
ManualSave6 = Save Slot 7
ManualSave7 = Save Slot 8
ManualSave8 = Save Slot 9
ManualSave9 = Save Slot 10

If you renamed the file than select all contents from the "Steam-Save" Folder and copy it into your Steam-Folder. If you're playing Steam normally, then use the Steam-Online-Path. 

Steam-Online Path: C:/Programs (x86)/Steam/userdata/YourSteamID/851850/

Steam-Offline Path: C:/Users/PC-User/AppData/Local/AT/Saved/SaveGames/

Non-Steam User Installation:

Go to the "Normal-Save" Folder.
There's the "ManualSaveX.sav". You'll have to rename the File. Rename the File into a Save Slot, that you want to use.

ManualSave0.sav = Save Slot 1
ManualSave1.sav = Save Slot 2
ManualSave2.sav = Save Slot 3
ManualSave3.sav = Save Slot 4
ManualSave4.sav = Save Slot 5
ManualSave5.sav = Save Slot 6
ManualSave6.sav = Save Slot 7
ManualSave7.sav = Save Slot 8
ManualSave8.sav = Save Slot 9
ManualSave9.sav = Save Slot 10

If you renamed the file than select all contents from the "Normal-Save" Folder and copy it into your DRAGON BALL Z KAKAROT Folder.
Example: C:/DRAGON BALL Z KAKAROT/AT/Saved/

v1.0-2.0 Changelog:

• Everything from the old Save of ☼ÐiöGØØØ☼'s Save File.

v3.0 Changelog:

• All (Normal) Fighters are on LvL. 250
• Max. Zeni
• Max. D-Medals
• Most Items have 499x Stocks, but some Items have over 500 Stocks
• Max. Z-Orbs
• Z-Encyclopedia 100% (Readed, without Marks)    
• Max. Freindship Level of soul badges (Not all are Gold, but everyone has Max. Level)

v4.0 Changelog:

•  All side quests are completed!

v4.1 Changelog:

• (I think that) All Fights have the S-Rang!

v4.2 Changelog:

• Installation-Description has been edited, hope you can do this now and i'm sorry about the one mistake.

v5.0 Changelog:

• DLC Support: A New Power Awakens (Main Quests and Side Quests are finished).

v5.1 Changelog:

• Minor Change: Removed the God Attacks, for Goku and Vegeta, because there are weaker than the other attacks. You can still add these attacks if you want.
• Item Stocks are on 999x Stocks
• Savegame still works on update 1.20.