Polish game Biznes Po Polsku

I was given a Polish game called Biznes Po Polsku. I have the travel version which is just cards, not the board game version. I have been trying to translate the instructions but I still don't understand some things. Has anyone played this game? I am confused about what the business expansion cards do. I know they are supposed to enhance a business if you have one of those cards, but do they count for anything? Do they make the business worth more money at the end of the game?

Is it a Monopoly game style? If so, it's not much different. But beware - it's hard to play and win against a robust Polish businessman or woman ;)