Display a progress bar using the Math extension

gv_math-percentage-bar.php

<?php // DO NOT COPY THIS LINE

// usage inside a Custom Content field on a View: [gv_math_percentage field="{field Merge tag here:x}"]

add_shortcode("gv_math_percentage", "gv_math_custom_shortcode");
function gv_math_custom_shortcode( $atts ){
	extract( shortcode_atts(
		array(
			'field' => '',
		), $atts )
	);
	$value = do_shortcode('[gv_math scope="entry"] ('.$field.' / 34 ) * 100[/gv_math]');
    $text = '<progress value='.$value.' max="100"></progress>';
    return $text;
}
add_filter( 'gravityview/math/suppress_errors', '__return_true' ); // this is needed