There is already 100+50+300+300=750 in the pot (Hero is SB = 250 to call). This is a huge pot, and you're obviously against at least one strong hand, maybe two (although the button has enough chips to splash around, especially in position.)

Your re-raise PF is terrible, and I don't think either of them would be justified in folding ANYTHING now. The proper raise would've been 1,250 (the pot is 750 + your 250 to call = 1,000 and you want to raise slightly more than that so 1,250 is a nice number). However, you only have 1,700, so you'll barely have anything left after this raise...I recommend just pushing all-in PF, you have to make them commit while you're the big favorite. If you take down the pot PF that is fine, it's a huge pot anyway.

My guess is you would've gotten called by probably QQ PF or maybe got them to lay down JJ or TT. Some players like to push all-in with a King on this flop, but they are rare. Considering how you played the hand, I would've called the all-in and prayed for QQ, JJ, or TT.