None were really difficult, but I had diffculty answering anything that required impromptu math. I'm a spreadsheet guy. I.e. if you could buy the same quantity of two products one with a 10% margin and a higher cost and one with a 20% margin and a lower cost which would you buy?
Sigiloso
You would have to look at other qualitative data (ie. consumer response) - Lets say the qty is 100 units of each. If Prod A is $200, 10% margin = $20 and Prod B is $100, 20% margin = $20. same thing. Look at demand forecast.