Rounding/conversion of Number/decimal in Sybase IQ

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I am trying to generate a report from Sybase IQ(new to me) and need to convert the amounts field as per user requirement. Current report is generated by Oracle Database and I need to replicate same exact report from Sybase IQ as well along with rounding of Amounts field.

Below are some example of amounts and its expected value.

Value from Sybase query Expected value after conversion
-433.39999999999998 -433.4
-681250.0 -681250
-896.38999999999999 -896.39
-26152.060000000001 -26152.06

I have tried some conversions on my own but they are not giving exact results as expected the only near I got is with CAST to decimal datatype.

select round(convert(decimal(23, 2), amt_field), 2))) from iq_table
select cast(round(amt_field,2) as decimal(23,2)) from iq_table
select TRUNCNUM( amt_field, 2 ) from iq_table
select round(amt_field,2) from iq_table
select cast(amt_field as decimal(23,3)) from iq_table

Please help if there are any other ways using which the above scenarios can be handled in Sybase IQ.

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