Sorry to be a bit dim but, with the following lines of code:

  $_ = FormatSigFigs($_,8);
  my $clem = sprintf("%08g", $_);
  print "$clem\n";
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and the number 1298.844667 as input, I get the output 01298.84 and not 1298.845, which is what I want.
Any ideas?
Thanks again for your help.

Edit: larsen. Added <code> tags and some minor formatting.