I want to know if any previous reports for calculating the cost of production of secondary metabolites are available? Any formulae or methods to follow.
You need a full characterization of your process. Including amounts and costs for raw material, machine time, working hours (including planning and preparingt time for instruments) then you can calculate the yield and the price of your compound per litre. Consider also rent for rooms and energy costs.
e. g.
USP
Media requirements
Cultivation time
Instrument costs
Working hours
DSP
Media/Solvent requirements
Instrument costs
Working hours
Since this varies from product to product significantly you may add/remove some of these positions. Afterwards you know the price of your product and you can calculate the price for different amounts.
But preparation time for a big fermenter may not significantly differ from preparation time for a small one and you can offer the customer a reduced price :)
You can add any level of complexity (e. g. different type of workers academic/student/uneducated with different pricing).