Route prices

[Luperco]

Hi all,
I'm back to Airwaysim after a few years hiatus.

I was hoping it would be implemented the city based demand for passenger, but, that's how it is.

Anyway, I'm playing to a beginner game just to to get the hang of it again.

I have a question: wanting to micromanage the routes prices, which is the best strategy to raise/lower the prices? At which LF do you raise prices and at which do you lower? And at which frequency do you check? Given the route image at 100, of course.

Thanks.