How to get correct Factor of ABS by REST API

I used REST API to get ABS's Factor infomation. But it seems i did not get corrected number.

On gui the Factor decimal places is 8. But the decimal places of Factor which I get by REST API is 6. How can i get corrected Factor by REST API.

I attach my source code here, can you help me to fix it to get 8 decimal places Factor.

My source code is:

var ExtractionsContext = ReutersServiceConnect<ExtractionsContext>();

var identiferList = InstrumentIdentifierList.Create(new ThomsonReuters.Dss.Core.RestApi.DssCollection<InstrumentIdentifier>());
if (referenceType == ISINValue)
{
identiferList.InstrumentIdentifiers.Add(new InstrumentIdentifier { Identifier = referenceCode, IdentifierType = IdentifierType.Isin });
}
else if (referenceType == RICValue)
{
identiferList.InstrumentIdentifiers.Add(new InstrumentIdentifier { Identifier = referenceCode, IdentifierType = IdentifierType.Ric });
}
else if (referenceType == CUSIPValue)
{
identiferList.InstrumentIdentifiers.Add(new InstrumentIdentifier { Identifier = referenceCode, IdentifierType = IdentifierType.Cusip });
}

var extractionRequest = new TrancheFactorHistoryExtractionRequest
{
IdentifierList = identiferList,
ContentFieldNames = new[] { "Factor", "Factor Date" },
};

var extractionResult = ExtractionsContext.ExtractWithNotes(extractionRequest);
var extractedRowsResult = extractionResult.Contents;