The Cream cheese will cost about 60 Baht/125 grams. The imitation crab will cost about 50 Baht/140 grams. (When I buy fresh crab, I will price this once I pick 140 grams.) Figure 3 servings, this is about $1.08 per serving.
Inspired by a conversation with Spend With Pennies and the link to the Crab Rangoon recipe is here.