When and how do you determine maxes for next cycle

[speedy5323]

I am about to finish the end of my 5 rep cycle and was wondering at what point do I determine my maxes for the next cylcle. Also, what is the most efficient way to determine these? I am still not quite sure how specefic 15, 10, and 5 rep maxes are figured.

 

[imported_dkm1987]

Read this it should answer your questions.