Although, it looks like I'm wrong about that as it says McD is forced by the government to source much of their foodstuffs in Venezuela which may actually be a cause of the problem.
Bottom line is that you have to go there to really know a lot because there does seem to be a bit of media blackout. I dont know how accurate numbeo is and whether it considers the black market rate for bolivars but it does indicate relatively cheap prices here:
Cost of Living in Venezuela. Prices in Venezuela. Updated Aug 2016