How may Sq. Ft. of granite countertop is it? That will tell us if it was overpriced, or not.
Normal(?) countertop width. I'm guessing 32" x 14' x 2" maybe? Straight run. No sink cutout. Simple rounded edging. Buffed to high gloss. Your basic headstone - except longer and thinner.
So roughy 37.33 square feet or 6.22 cubic feet of granite before cutting and finishing.
I'm guessing you're in the trade?