Display the base price of the ticket in the ticket selector (instead of the modified price). Requires Event Espresso 4.4 and up.

base_price.php

<?php
//* Please do NOT include the opening php tag, except of course if you're starting with a blank file

// display the base price of the ticket in the ticket selector (instead of the modified price)

add_filter(
    'FHEE__ticket_selector_chart_template__ticket_price',
    'change_ee_ticket_selector_base_price_display',
    10,
    2
);

function change_ee_ticket_selector_base_price_display(
    $ticket_price,
    $ticket
) {
    return $ticket->base_price()->amount();
}