When I've bought these packets before, the duck always has the skin on, as they crisp up the skin probably by frying it! So, to be on the safe side I would count in the full amount of syns calculated by Princess Stevie. If its for 2 of you tho, its not too bad!
For future reference Charlene, I make this dish myself as its one of my favourite Chinese dishes. I cook up some chicken breasts/thighs (free) & shred them, buy some Chinese pancakes (approx 1.5 syns per pancake), have shop bought HoiSin (1.5 syns per tbsp) & the cucumber/spring onion (free). So, a lot less in the synage department! x