iffy blind defense at 100/200

[kyro]

PP $109. I don't recall how SB lost the majority of his stack. The last two orbits, however, he has folded to me at 25/50 and pushed with about 600 at 50/100. Now blinds are at 100/200. Folded to him. He pushes for 535 total. I have 705 after posting. 435 for me to call a pot of 835. What range do I need to call here? (And yes, I know I need to get eastbay's program)