59 delegates apportioned by per centage of the vote. Trump at close to 37 %, Cruz at close to 20, hard to say how this breaks with Kasich going at it.
Trump may out perform the polls, not sure how the GOPe war will affect it yet.
My guess is he gets at least 37%, and possibly more. Hard to say how the others will do, still fluid. Michigan blue collar (R)'s love Trump.
Michigan is also subject to a 15% floor. Depending on the poll, Kasich or Rubio may not make it (or Kasich might win the state. LOL @ ARG).
Michigan is also Winner Take All if a candidate can clear 50% + 1. Unlikely as the highest Trump is polling is around 42%.