ADR class 6 and class 2 have the highest payout for some types of cargo (ex: acid, which has a price coefficient of 2.20). However, because ADR deliveries only have a single level, they're not the way to make more money. Heavy cargo has (in general) a higher price coefficient than fragile cargo. Since you can increase your % bonus by leveling these up, with Heavy Cargo at level 6 and just-in-time at level 6 (since these combine), you will get the most money going with those skills.
That being said, Fragile cargo has a slightly higher XP bonus than Heavy Cargo (22% vs 18%). So if you're looking to squeeze out more XP rather than money, then you should go Fragile cargo level 6 and Just-in-time level 6. Personally I feel that leveling up is fast enough already, and you'd be better off going for the cash option of Heavy Cargo + JIT.
You'll also want to level up Long Distance, since this will give you reward bonuses that stack with the other skills.
A typical game would look like this for me: Heavy, JIT, Heavy, JIT, Heavy, Long Distance, Heavy, Heavy, Long Distance, Heavy, JIT, JIT, JIT, JIT, Long Distance (up to max). Lastly I'd spend on eco-driving.
Two final tips: When searching for a job, always list by "Price per distance" in order to get the maximum payout per mile. Learn how to park the trailers and never skip parking them manually, so you always get the xp bonus for that.
Best Answer
If you are going to restore a complete profile, you need to place it inside of the
profiles
folder (if you want to enable Steam Cloud for that profile, you can always change the option from the game menu).For individual savegames on the other hand, you need to paste them in:
~/Library/Application Support/Euro Truck Simulator 2/profiles/<Your Profile>/save
~/Library/Application Support/Steam/userdata/<Your ID>/304730/remote/profiles/<Your Profile>/save