Perhaps this might help.

Set Menu for 10 pax @ Esplanade Location

Includes (1-Combination Platter, 2-Sharkfins Soup with Conpoy & Crabmeat, 3-Steamed Sea-Bass Hong Kong Style, 4-Deep Fried Butter Chicken, 5-Crispy Cereal Prawns, 6-Mushroom with Vegetables, 7-White Pepper Crabs or Chilli Crabs, 8-Yang Chow Fried Rice, 9-Dessert of the days)

S$439 + 10% svc charge + 7% GST
Hence, >$50/pax is very likely with drinks and what not.

The $25-35/pax @ Geyland location quoted in hungrygowhere is from one review and is likely to be an underestimation. I could be wrong. Will see if I can a similar price check for the location @ Geyland. (Can't guarantee will get one though)