wcfad_get_price_html.php

<?php
/**
 * Display alternative price for specific role
 */
function my_prefix_filter_price_html( $price_html, $price, $product ) {

	if( ! is_user_logged_in() ) {

		$role = 'administrator';

		if( $product->get_type() == 'variable' ) {

			// Get the price for a specific user role
			$variation_prices = wcfad_get_variation_prices_by_role( $product, $price, $role );

			$min_variation_price = current( $variation_prices );
	    $max_variation_price = end( $variation_prices );
			$best_price = $min_variation_price;

			$min_max = array( $min_variation_price, $max_variation_price );

			if( $min_max[0] != $min_max[1] ) {

				// Display the formatted price range
				$price = wc_format_price_range( $min_max[0], $min_max[1] );

			} else {

				$price .= wc_price( $best_price );

			}

			$price_html .= sprintf(
				'<p>%s: %s</p>',
				__( 'Admin Price' ), // Change this text as you wish
				$price
			);

		} else {

			// Get the price for a specific user role
			$price = wcfad_get_product_price_by_role( $product, $price, $role );
			$price = wc_price( $price );

			// Add our extra information to the label
			$price_html .= sprintf(
				'<p>%s: %s</p>',
				__( 'Admin Price' ), // Change this text as you wish
				$price
			);

		}

	}

	return $price_html;

}
add_filter( 'wcfad_get_price_html', 'my_prefix_filter_price_html', 10, 3 );