I checked the official gop site; https://www.gop.com/official-2016-gop-delegate-count/
Trump has 755 and needs 482
Cruz has 521 and needs 716
There are 798 remaining
Trump needs 60.4% of the remaining delegates.
Cruz needs 89.7% of the remaining delegates.
By dynoman
The “official” GOP site doesn’t claim that their delegate count is official. in fact the page says, “Delegate totals are estimated and subject to change as vote totals are updated and counted throughout the process.”
Let’s see what some of the others say:
RCP: Trump 755, Cruz 545
Bloomberg: Trump 743, Cruz 545
Politico: Trump 743, Cruz 545
So the consensus seems to have Cruz at 545, with Trump somewhere between 743 and 755.
There are 769 delegates left between now and June 7th, but only 715 of those are bound delegates.
So even giving Trump the benefit of the doubt at 755, he needs 67.4% of the remaining bound delegates to get to 1237.
Kasich and Cruz need to combine for a total of 233 bound delegates to force an open convention, or 33%.