Yes. The price-per-record will drop when you press more than 500 copies of your record, and further still if you press over 1,000 records. The exact amount of the discount will vary depending on the specifications for your record.
If you get more than 500 or 1,000 pledges, those discounts will apply automatically, and you’ll earn more money from your vinyl campaign as a result.
You can also apply any profits from your campaign (or, spend your own money) to press more records in order to take advantage of those volume discounts.