Show total and remaining amount on the front end product page.

functions.php

function bkap_appending_additional_information_to_price( $display_price, $wp_send_json ) {

	$total = $wp_send_json['total_price_calculated'];
	$price = $wp_send_json['bkap_price_charged'];
	if ( $total != $price ) {
		$wc_price_args     = bkap_common::get_currency_args();
		$remaining         = $total - $price;
		$total_label       = get_option( 'bkap_total_amt_label', '' );
		$total_display     = $total_label . wc_price( $total, $wc_price_args ) . '<br>'; // Total Price.
		$remaining_label   = get_option( 'bkap_remaining_amt_label', '' );
		$remaining_display = $remaining_label . wc_price( $remaining, $wc_price_args ); // Remaining Price.

		$display_price = $total_display . $display_price . '<br>' . $remaining_display;
	}

	return $display_price;
}
add_filter( 'bkap_appending_additional_information_to_price', 'bkap_appending_additional_information_to_price', 10, 2 );