Example Data Guest Name(s) : xxxx Total of Guest : 3 Adults, 2 Children (5, 2 years old) Arrival Date : 30th June 2025 Departure Date : 4 th July 2025 Room Type : 1 x Space Suite Connex Room Rate : THB 17,200. -Net per room per night included 4 breakfasts . Total Payment : THB 68,800. -Net (PAID) Note : The above room rate is included 10% service charge and 7 % Government Tax Service Charge : 10% service charge at THB 1,461.35. -Net per night, total 4 nights at THB 5,845.37. -Net Value Added Tax : 7 % Government Tax at THB 1,125.23. -Net per night, total 4 nights at THB 4,500.93. -Net

As the rate THB 17200 is a net rate which include tax, pls check the rate with tax in this case

Click Generate, the program will calculate for you base on the tax amount you provide, you can find the calculate method as below:

VAT: Tax Amount / (Total Cost - Tax Amount) (5,845.37＋4,500.93)/(68800 - (5,845.37＋4,500.93)) = 0.1769999161729711

Price per night on average: Total Cost / (1+VAT)/nights 68800/(1+0.1769999161729711)/4 = 14,613.425 Total Room Charges: Total Cost / (1+VAT) 68800/(1+0.1769999161729711)=58,453.7 Total Taxes & Fees: Tax Amount 5,845.37＋4,500.93 = 10,346.30 Total Charge: Total Price 68800 Complimentary Night Credit: Sum(Daily Rate of first 4 night with tax) / (1+VAT) / 4 (17200+17200+17200+17200)/(1+0.1769999161729711)/4 = 14,613.42