roundingRuleFractional - Rounding Rules

Updated June 04, 2025 07:44

Rounding rules in Fairways Debt enable you to refine rates, so they can be as precise as you wish.

<standardLoan>
 <phases>
  <phase>
   <indexing>
    <index>
     <advanced>
      <interestRateComputation>
       <roundingRuleFractional>
        <precision> ... </precision>
        <rateRoundingMethod> ... </rateRoundingMethod>
       </roundingRuleFractional>
      </interestRateComputation>
     </advanced>
    </index>
   </indexing>
  </phase>
 </phases>
</standardLoan>

Tag	Item	Description
roundingRuleFractional	Main	Rounding rules to apply.
precision	Secondary	Denominator in the fraction 1/N.
rateRoundingMethod	Secondary	Rounding method.

To apply a rounding rule to a transaction:

Add the <roundingRuleFractional> tags in the <interestRateComputation> tags of the transaction.

<standardLoan>
 <phases>
  <phase>
   <indexing>
    <index>
     <advanced>
      <interestRateComputation>
       <roundingRuleFractional>
       </roundingRuleFractional>
      </interestRateComputation>
     </advanced>
    </index>
   </indexing>
  </phase>
 </phases>
</standardLoan>

Add the <precision> tags in the <roundingRuleFractional> tags.

<standardLoan>
 <phases>
  <phase>
   <indexing>
    <index>
     <advanced>
      <interestRateComputation>
       <roundingRuleFractional>
        <precision></precision>
      </roundingRuleFractional>
      </interestRateComputation>
     </advanced>
    </index>
   </indexing>
  </phase>
 </phases>
</standardLoan>

Enter the precision, i.e. the denominator in the fraction 1/N.

Note: The maximum precision is 10.000.000.

In this example, we enter a precision of 64.

<standardLoan>
 <phases>
  <phase>
   <indexing>
    <index>
     <advanced>
      <interestRateComputation>
       <roundingRuleFractional>
        <precision>64</precision>
       </roundingRuleFractional>
     </interestRateComputation>
     </advanced>
    </index>
   </indexing>
  </phase>
 </phases>
</standardLoan>

Add the <rateRoundingMethod> tags in the <roundingRuleFractional> tags.

<standardLoan>
 <phases>
  <phase>
   <indexing>
    <index>
     <advanced>
      <interestRateComputation>
       <roundingRuleFractional>
        <precision>64</precision>
        <rateRoundingMethod></rateRoundingMethod>
       </roundingRuleFractional>
      </interestRateComputation>
     </advanced>
    </index>
   </indexing>
  </phase>
 </phases>
</standardLoan>

Enter a rounding method:

Rounding Method	Content Name
Nearest	NEAREST
Down	DOWN
Up	UP
Half down	HALF_DOWN
Half up	HALF_UP

In this example, we select the half down rounding method.

<standardLoan>
 <phases>
  <phase>
   <indexing>
    <index>
     <advanced>
      <interestRateComputation>
       <roundingRuleFractional>
        <precision>64</precision>
        <rateRoundingMethod>HALF_DOWN</rateRoundingMethod>
       </roundingRuleFractional>
      </interestRateComputation>
     </advanced>
    </index>
   </indexing>
  </phase>
 </phases>
</standardLoan>

The relevant fraction is automatically calculated using the entered precision, in this example 1/64 = 0,015625.