What is the spectrum on the ratio of complex to simple carbs?

Say I’m supposed to have 300g of carbs per day, of course ideally and most healthily would be to have them all as complex carbs. Maybe with the exception of intra workout carbs.

So, for regular non extreme but disciplined diet folks, what is the ratio one should be trying to achieve? 1/5, 1/6, 1/10?