proportional.
Neither.
Cruz could end up getting more delegates in that scenario......IF he actually has a wider spread of votes over the state instead of just concentration of votes in cities.
No one is going to get a majority. The top three—Cruz, Rubio, and Trump—are all likely to be in the 15%-35% range, with the others each getting a smaller percentage. But your question is a good one, about how delegates are awarded according to percentage.
They are now proportional tied the vote count.
The Iowa delegation to the Republican National Convention shall be bound on the first ballot to vote proportionally in accordance with the outcome of the Iowa Caucuses.
Iowa has 27 delegates. Each candidate receives a portion of delegates based on his/her percentage of the total statewide vote.
Example: Trumps gets 30% of the statewide vote. .30 X 27= 8.1 . Trump gets 8 delegates
More info here...
http://www.thegreenpapers.com/P16/IA-R
Proportional to the statewide vote but they are only bound to that for the first ballot at the convention. Democrats have a more convoluted proportional system You know Democrats.
Correction: Iowa has 30 Republican delegates, not 27.
GOP rules are that there can be no winner-take-all primaries until March 15.
With Iowa’s new rules, New Hampshire is no longer the first state to determine convention votes. That seems like a really big deal to me, and maybe not for the good.
Iowa GOP caucuses are actually now just a primary with caucus tasks following the presidential preference vote.