Reverse variable pricing

function sumobi_edd_purchase_variable_prices( $variable_prices, $download_id ) {

	krsort( $variable_prices );

	return $variable_prices;

}

add_filter( 'edd_purchase_variable_prices', 'sumobi_edd_purchase_variable_prices', 10, 2 );

/**

 * make sure the last option in array is checked (highest priced item)

*/

function sumobi_edd_price_option_checked( $checked, $download_id, $key ) {

	$prices = edd_get_variable_prices( $download_id );

	end( $prices );

	$checked = key( $prices );

	return $checked;

}

add_filter( 'edd_price_option_checked', 'sumobi_edd_price_option_checked', 10, 3 );