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Trick Tricks & hacks

Everyday

Small everyday tricks, from quick sums to time-savers.

Ex-GST sums: $110 divided by 1.1 is $100, so the GST is $10

Trick Everyday How to calculate an ex-GST price in Australia Divide the GST-inclusive price by 1.1 to get the ex-GST price, or divide it by 11 to get the GST. So $110 is $100 plus $10 GST. February 1, 2020 4 min read