Bonus coins

How and when to get bonus coins?

From mastering key levels of factory jobs and whenever you like, just work on the same contracts in your factories until you hit the bonuses.

There are also Daily Bonuses, don't know how they are calculated, seem to vary.

I just got my daily bonus for the first time after installing City Story to my iPod yesterday. I received greatly over 10,000 coins.

Add me if you'd like: OrionV

Does anyone know how the bonuses are added up Ty xo