just to understand correct:
you talk about frontend output?
goal is: to have a select-box that contains product quantity, and if you select one, then you wish that at a different place the value of price is displayed?
i assume for that you need javascript.
try something like that
//html build with your repeater values (get quantity and price)
<select id="quantity" name="quantity" required>
<option name="quantity" value="1" data-price="5 Bucks">1</option>
<option name="quantity" value="5" data-price="25 Bucks">5</option>
<option name="quantity" value="10" data-price="50 Bucks">10</option>
<option name="quantity" value="$quantity" data-price="$price">$quantity</option>
</select>
<span id="price-text"></span>
----
//javascript (jQuery needed)
<script type="text/javascript">
$(document).ready(function () {
$("#quantity").change(function() {
$('#price-text').text($('option:selected').attr('price-example'));
}).change();
});
</script>
