while (<DATA>) {
  if ($_=~m#\s+(\d+\.\d+)\%(.+)$#) {
      print $` . " " . $1 / 100 . $2 . "\n";
  }
}



__DATA__
ENSP00000233379 1058 30 1206 1298 96.1% 13 + 96524483 96533474 8992
ENSP00000233379 1058 30 1206 1298 64.3% 13 + 96524483 96533474 8992
ENSP00000233379 1058 30 1206 1298 23.2% 13 + 96524483 96533474 8992