Well, actually, the trophies are permanent: orbs, and eg. "
ladybug" or "
unbreakable piggy bank" or "
mysterious gear" and such.
Once you get a trophy, look at its description in your inventory.
Last I kept
~90% 78% of the gold - though there's nothing to do with the
14 170 mio she owns.
Maybe some day I'll continue, may want to see what happens if you push the gold-keep-rate beyond 100%

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have to say I disliked the game's misleading description of the classes. It made believe that merchant would be most difficult, and maybe free lancer even more.
actually it is:
easiest - for starters: warrior, later-on (with a full warehouse and skillset): freelancer
more difficult : merchant
most difficult (resp. tedious/ slow) : mage
and there are some achievements which just won't, no idea why. not that I care much, but still ...
like, I never would would have bought those trade skills lvl.5 (does not pay off) if not for the "all skills" achievement, but nope.
EDIT: started it, looked at real numbers, oh wow, misremembered my achieved stats much. 
really thought I was at 90% with the gold already....