Hi

I have numerous web site business ideas.
I have read the Lean Startup and understand all that is involved with the minimum viable product and testing whether an idea will work or not and therefore don't need to put all the effort into creating 'full system'.

My problem is assessing if it did work and take off is it worth it anyway.

For example, say your income was 5% of everything that the website sold / generated.

£100,000 worth of business would only result in £5,000 minus operating cost etc etc

Would you follow such a business with low percentage, 5%?

What would be your minimum percentage amount?

Cheers