TableHelper cellWidth calculation with colors.php

<?php
$table = $this->getHelperSet()->get('table');
$table
    ->setHeaders(
        array(
            '',
            'Absolute',
            'Percent',
        )
    )
    ->setRows(
        array(
            array('Free', "12.76 GB", "<error>5.48%</error>"),
            array('Total', "232.96 GB", "100.00%"),
            array('Used', "220.2 GB", "94.52%"),
        )
    )
;