Come Down To Meaning

(idiomatic) To depend upon, basically, ultimately or in essence.

Example: To reach by moving down or reducing.
  Wait for the temperature to come down to a reasonable level before touching the lid.
  Come down to my place someday and have lunch.
  The decision comes down to whether you really want to pay that much for a little extra convenience.
  The game is going to come down to the last five seconds.