Taken from last ann."With a population of over 300m there are an estimated 42m asthmatics in the US, of which approximately 10m are under the age of nine."let's say a conservative take up of 10% of people under 91,000,000 x $50 AUD = $50,000,000as previously stated VSG gross about 70% profit= $35,000,000 gross profit (using AUD)Off course these are very rough figuresbut it gives you an idea of the potential