Its not so much a matter of belief as the gov reported inflation rate is tied to innumerable fedgov dependents via cost of living allowance raises and so forth.
So the truth of the matter is the .gov is willing to pay its dependents 2.3% more, unfortunately inflation rate is somewhat higher, then again their cost of shipping is not necessarily numerically equal to the aggregate average inflation rate of every product for everyone purchased everywhere.
There is the obvious data gathering issue that amazon can't signal 6 sig figs of inflation accuracy, for marketing reasons it probably had to be rounded to the nearest $5, probably rounded up.
So the truth of the matter is the .gov is willing to pay its dependents 2.3% more, unfortunately inflation rate is somewhat higher, then again their cost of shipping is not necessarily numerically equal to the aggregate average inflation rate of every product for everyone purchased everywhere.
There is the obvious data gathering issue that amazon can't signal 6 sig figs of inflation accuracy, for marketing reasons it probably had to be rounded to the nearest $5, probably rounded up.