Generally package nutritional information is for the item in the box, uncooked, unless otherwise noted. So 1/4 cup would be dry weight. Generally speaking, a serving of any rice is going to be 1/2 cup, although that can vary by how you cook it. Since you cooked one cup, you divide the results by 4 to get your serving for your cooking. How much that actually ends up being depends on how much water the rice absorbs.
Pastas and rice should generally always be weighed dry for for that reason. :) Too much variability post-cooking.