$this->output( sprintf( "Database size was %d, now %d (%.1f%% reduction).\n",
$prevSize, $newSize, ( $prevSize - $newSize ) * 100.0 / $prevSize ) );
} else {
$this->output( sprintf( "Database size was %d, now %d (%.1f%% reduction).\n",
$prevSize, $newSize, ( $prevSize - $newSize ) * 100.0 / $prevSize ) );
} else {