The campaign goal is the minimum amount of money needed for your campaign to succeed. We set that goal by taking into account the manufacturing, shipping, and support costs of a minimum order of 250 records, with all the vinyl options you specify in the campaign editor.
Good news to keep in mind: even though you need to raise enough funds to produce the minimum run of 250 copies of your record, you won't necessarily need to hit 250 pledges. You can set higher pledge levels for fans who are willing to pay more. Plus, like most other releases on Bandcamp, pledges are name-your-price, meaning fans can pay more if they want. The higher the pledges, the fewer you'll need to hit your goal.