How do I find how much it costs to park a B747 at an airbridge in Perth?
Note that parking is not the same as waiting at the gate to load/offload passengers. Parking is when your aircraft is not using the terminal, but the airport facilities (like aprons, hangars, etc.)

Let us assume you are carrying 200 passengers, and leaving with 200 passengers:

First of all, you have to pay the landing fee, which is:

(4.891 x 400) + (9.528 x your landing weight, in tonnes)

Next, you have to calculate the terminal charges - assuming you are an international flight, (so you are using Terminal 1):

(13.868 x 400) + (0.450 x 200) + (1.111 x 200) + (5.997 x 200)


13.868 is the terminal fee, per arriving or departing passenger
0.450 is Common Use Service charge, per departing passenger
1.111 is the security fee, per departing passenger
5.997 is the baggage checking fee, per departing passenger 


Since you'll only be staying for 1 hour, you don't have to pay any parking charges; which are only charged for staying more than 2 hours.

So total passenger fees are: AUS $9,015.20, before tax;  you still have to calculate your landing weight and multiply it by 9.528 to get the final amount.