Relative speeds and distances

If most matter(maybe superclusters) have been separating at
an ever faster rate for 13+ billion years, what is the minimum
percent of the speed of light the furthest group is now
traveling relative to our speed? How does this relate to the
initial inflation speed and distance? Has there been more than
one speed up? How close were clusters when they were first
formed? I am looking for absolute distances w/o gravitational distortion,
if possible. Thank you.