Healthcare finance

An eye clinic has a procedure whose gross charge is $1,400 of which $1.000 is collected. The variable cost per procedure is $400. The monthly fixed cost assigned to doing this procedure is $6,000. The surgery center wants to generate a $4,000 profit each month in doing this procedure. How many procedures per month, rounding up to the next highest dollar if necessary, would it need to do? (Show your work as partial credit will be given)