RRP Price Tutorial - Display price on frontend

gistfile1.php

add_action( 'woocommerce_single_product_summary', 'wc_rrp_show', 5 );
function wc_rrp_show() {
    global $product;
	// Do not show this on variable products
	if ( $product->product_type <> 'variable' ) {
		$rrp = get_post_meta( $product->id, 'rrp_price', true );
		echo '<div class="woocommerce_msrp">';
		_e( 'RRP: ', 'woocommerce' );
		echo '<span class="woocommerce-rrp-price">' . woocommerce_price( $rrp ) . '</span>';
		echo '</div>';
	}
}

// Optional: To show on archive pages
add_action( 'woocommerce_after_shop_loop_item_title', 'wc_rrp_show' );