i'm not a professional but 1%/day is very easy
i'm not saing that all days are good but on a good day you can make a horrible percentage. (a record: George Soros made 1billion$ profit on a day
And the thing what i don't know, how can sb make 150% if he don't use forex. Maybe i'am too sceptic but the only "normal" way what i can emagin is forex. But if sb can do it, probably he is too good to "play" a game like this.