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# Request for Experts Formulas for this Calculation

 Currency SGD Less 15% of Total Total with 3% GST Total Singapore Dollars 9.00 10.30 10.05 Singapore Dollars 4.30 5.20 5.00 Singapore Dollars 4.30 5.20 5.00 Singapore Dollars 5.10 6.20 6.00 Singapore Dollars 8.40 10.20 9.90 Singapore Dollars 4.20 5.00 4.90 Singapore Dollars 10.20 12.40 12.00

Let say If I only have data on the Total amount, how do I go about entering the formula for Less 15% of Total and Total with 3% GST?

Kindly help me, thks!

3 Replies

# Re: Request for Experts Formulas for this Calculation

I tried to build a formula that went from your Total column to each of the other two, but the results were inconsistent. The closest I got was to assume amounts should be rounded to the nearest 5 cents.

The following formula assumes your sample data are in A2:D2. Values in D2 are given. The formulas for B2 and C2 (less 15% discount and plus 3% GST) are shown below:

```=MROUND(D2*0.85,0.05)
=MROUND(D2*1.03,0.05)```

# Re: Request for Experts Formulas for this Calculation

Thank you Sir,
It do help in some way. However, I required to derive to a nearest 0.10 cent if its above 0.5 should be 1.0 then.

# Re: Request for Experts Formulas for this Calculation

The figures in your example table neither round up to the dollar nor to 10 cents. So I don't understand how to interpret "I required to derive to a nearest 0.10 cent if its above 0.5 should be 1.0 then."

Either revise your example table, or clarify how you want the calculations to be done.

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