Your word count should be 48 not 47. The problem is with this line:
$totalcount += (split(/ /) - 1);
If a line begins with whitespace, then subtracting one is correct, but otherwise it isn't. A better way to do this is:
$totalcount += split(' ');
and then you don't have to check for blank lines.
Another simple way to perform the count:
#!/usr/bin/perl -n
while (m/\w+/g) { $count++ }
END { print "count: $count\n" }
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