Hi everyone

Is there a website where i can invest some BTC and get good interest on a monthly basis (won't mind if the interest is low).

I have heard about Btcjam. They say investors can get 18.54% from their investment.

Let say...If i invest 0.004 Btc in Btcjam.....What will i get in return..? It say 18.54% so can anyone calculate this for me..?