Logic of the report MGT: Unbilled Receivables Aging when ran with parameter GL Date or PA Date

Hi Experts,

I ran the MGT: Unbilled Receivables Aging report by ‘Expenditure Item Date’ and got the expected result, which matches the expected result by taking the Invoiced Amount less the Net Revenue amount, or $393,345.54.

But when running it by ‘GL Date’ or by ‘PA Date’ the result is $80,756.17.

Why aren’t the values the same?

What is the logic for the report when running by ‘GL Date’ or ‘PA Date’?

Thanks