Page 23 - LEARNER GUIDE FNSACC313

Perform Financial Calculations

The first invoice shows the GST as a separate figure, whilst the second invoice does not show
GST as calculated in the final price.
GST, when not included in a price, is easily calculated as it is a simple 10% calculation. This
should be easily calculated by moving the decimal point one place to the left. So, hopefully
even without a calculator or a spreadsheet you will be able to identify that the GST on
$3546.20 is $354.62.

GST, when included in a price, is not quite as simply calculated, though it is not too hard. We
find the GST included in a quoted price by dividing by 11. So, $3546.20 11 = $354.62. So,
the answer is the same value.
What is the GST figure for the first invoice above? $6.26.
What is the GST figure for the second invoice above? $102.86.
How did you go? Hopefully you have mastered these GST calculations.

Try finding the GST for these sales figures which do not include GST:
GST on $2500 = Check
GST on $2625 = Check
GST on $2756.25 = Check
GST on $2894.063 = Check

Try finding the GST for these sales figures which do include GST:
GST on $2837.46 = Check
GST on $124.20 = Check
GST on $599.00 = Check
GST on $14.56 = Check

PRACTICAL APPLICATION

Now turn to the Practical Applications and complete the two sets of applications for
calculators on GST.

Anne Bowden ©2020