robocopy calculation

I was trying to copy a 40GB file w/robocopy and it completed in around 1 hr
50 mins.. but the eventual speed listed by robocopy do not add up. What is
it referring to ? Can someone explain ?


-------------------------------------------------------------------------------
ROBOCOPY v 1.95 : Robust File Copy for Windows NT : by
(E-Mail Removed)
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Started : Fri Apr 13 20:50:25 2007

Source : \\sql\r$\
Dest : \\sql2\r$\
Files : file1.bak
Options : /R:1000000 /W:30

------------------------------------------------------------------------------

1 \\sql1\r$\
100% New File -654909952 file1.bak

------------------------------------------------------------------------------

Total Copied Skipped Mismatch FAILED Extras
Dirs : 1 0 1 0 0 0
Files : 1 1 0 0 0 0
Bytes : 39.390 g 39.390 g 0 0 0 0
Times : 1:47:57 1:47:57 0:00:00 0:00:00

Speed : 561966 bps.
Speed : 32.155 mb/min.

Ended : Fri Apr 13 22:38:22 2007