Counting the usual set-up, one hostess per guest, with the 10% booking discount, VAT and all tips included:
Room 601, 10 guests + 10 hostesses, 3 hours: 29,632,840₫, about 2,960,000₫ per guest.
Room 602, 20 guests + 20 hostesses, 3 hours: 51,846,200₫, about 2,590,000₫ per guest.
Drinks are counted at 500,000₫ a head for guests and hostesses together; food and fruit for a big table run about 5,000,000₫ for ten and 6,000,000₫ for twenty. Of the totals, the tips (11,500,000₫ for 601, 21,500,000₫ for 602) are paid in cash, and the rest (18,132,840₫ and 30,346,200₫) can go on a red (VAT) invoice.
Each hostess fewer than the number of guests takes off roughly 1,495,000₫ (her 1,000,000₫ tip plus her drinks). For other group sizes or durations, the booking calculator works it out.