The CBO said very clearly that if you were to adopt the president's plan, there would be a $2 trillion hole in Social Security, because today's workers pay in to the system for today's retirees. And the CBO said -- that's the Congressional Budget Office; it's bipartisan -- they said that there would have to be a cut in benefits of 25 percent to 40 percent.
The cut in benefits could be 32.7%.
The cut in benefits would be between 25 and 40 percent, therefore any potential number in between (such as 32.7%) would be definitely correct.  If the statement had instead been "The cut in benefits *will* be 32.7%" rather than "The cut in benefits *could* be 32.7%" then that would be a different matter.