Update prices on the pricing page for current members with Paid Memberships Pro.

pmpro_level_cost_text_filter_pricing_page.php

/*
	Update Prices on the Pricing page for current members.
  
  Add this code to a custom plugin.
*/
function pmpro_level_cost_text_filter_pricing_page($cost, $level, $tags, $short) {
	//if we're not on the pricing page, just return
	global $pmpro_pages;
  if(!is_page($pmpro_pages['levels']))
		return $cost;

	//disable this filter so we don't get caught in a loop
	remove_filter('pmpro_level_cost_text', 'pmpro_level_cost_text_filter_pricing_page', 10, 4);

	//grab the level and run it through the checkout filter
	$level = apply_filters('pmpro_checkout_level', $level);
	$cost = pmpro_getLevelCost($level, $tags, $short);

	//reenable this filter
	add_filter('pmpro_level_cost_text', 'pmpro_level_cost_text_filter_pricing_page', 10, 4);

	return $cost;
}
add_filter('pmpro_level_cost_text', 'pmpro_level_cost_text_filter_pricing_page', 10, 4);