Originally Posted by

**mlasmanis** Hello,

I have problems with some basic math. Please help us.

How to calculate an appropriate market factor combing GDP market share, industry market share and a growth rate of the specific market.

For example

GDP = 25 %

Industry market share = 40%

Growth rate = 6 %

Just multiplying the numbers does not solve the problem since the number end up quiet small. One idea might be to calculate a weighting factor based on industry market share and growth rate that can be multiplied with GDP percentage