Typically at the moment Personal Loan rates have not fallen as much, or as fast as Home Loan Rates.
To get an accurate picture, put an Interest Rate of 14% to 16% in as a better guide as to what the repayments are likely to be.
Your Personal Loan Broker will be able to give you a more accurate repayment figure, once they have ALL of your application details.
Also note that these personal loan calculators do not include any fees and charges associated with borrowing the money, which will typically include goverment charges, and loan fees from the credit provider. This is covered with more detail at FAQ.