Back To The Future Upholstery

Pete made a cover for my pontoon. Quality of the work was good.. Very disappointed when I received the bill and it was 40% more than his original quote. The quote was $850 and the bill was $1250. His explanation was that this size pontoon typically takes 17 yards of fabric and mine took 19. He said he needed 2 additional support poles ($25 ea) due to the layout as well. Two yards is a little over 10% more fabric so I could justify 10 to 20% over the quote but not 40. He should have called to explain and asked if I was okay with this overage. But I was not told until the cover was completed and he would not budge.