The measures correspond to substantial economic debt relief … Considering these maturity extensions and interest rate deferrals over the entire debt servicing profile from a net present value (NPV) perspective shows a reduction in the overall debt burden and reveals implicit savings. … Stretching out principal repayment schedules over such an extended period of time, along with interest payment deferral, imply that these payments account for substantially less in NPV terms when assessed from the Greek side taking into account the financial market perspective.

No explanation is given as to why the NPV perspective should only reveal “implicit” savings. Whether a Euro must be paid in ten years or in twenty does make a difference, and a rather substantial one at the relevant interest rates. A footnote attached to the last sentence of the above quote is rather obscure as well. It says:

It should be noted that this does not entail any financial loss or write-down from an EFSF perspective. The EFSF is fully repaid; Greece has to cover any financing costs related to the agreed interest rate deferral in line with the amendment of the Master Financial Assistance Facility Agreement.

See the earlier post on how to correctly account for sovereign debt.