
In Australia, we pay goods and services tax on goods and services that [qualify in whatever way]. The money raised from GST goes to [whatever it goes to].
If you're a fan of doing maths in your head (or have a particular affinity for your calculator app), you can work out GST by ...
If you already know the total amount and want to work out how much GST is included in that amount, simply ...
You may need this as a business because ...
You may also need this calculation as a consumer in order to ...
