Change Price Html Priority to Max
Set priority of price HTML customization to maximum.
// To change the price strikeout html priority to max.
add_action('wp_loaded', function() {
if(class_exists('\Wdr\App\Router')){
remove_filter('woocommerce_get_price_html', array(\Wdr\App\Router::$manage_discount, 'getPriceHtml'), 100, 2);
add_filter('woocommerce_get_price_html', array(\Wdr\App\Router::$manage_discount, 'getPriceHtml'), PHP_INT_MAX, 2);
}
});