To sentence # 2:
Por causa dos acontecimentos recentes, perdi muitos clientes e deixei de ganhar muito dinheiro.
A) Because of the events (storms/rains/hurricanes/energy outage, etc), I have not seen much of the regular costumers (or many costumers have not come to buy) here. Those events have impacted negatively on the selling (of goods, etc).
 also: My business has been impacted negatively by those events.
b) My business revenues took a hit from the tornado/recent rains, etc.
And other ways.