20/4

Hello guys, thats my first post here and just out of couriosity i would like to ask you how much % yield i would loose if i change to 12/12 after 49 days of 20/4 since germination. (i know that its impossible to give precise answer to my questions, but maybe you could still give some helpful...

I currently have this plant in week 3 of flower, I originally had it inside on a 18/6 schedule, but decided to put it outside when I switched my tent to 12/12. I live in the Caribbean and we get about constant 12hr sunlight almost all year round. Its been raining a lot lately so I've forced to...