50% for MB and 25% for the Salafists. I'd be surprised if the Salafists were demonstrating against Morsi.
I believe your numbers are for the parliament seats, not the presidency.
The majority of Egyptians are not MB or Salafis but wanted to get rid of Mubarak and wanted the dreaded “CHANGE!” Hence, Morsi and ,NOT Shafiq, and the rest is history.