Information on the Inflation rate?

I can’t seem to find a decent source for current inflation. Whenever I hear the rate of inflation, that’s it: I hear it from someone else. I hear from some that inflation is at about 3-4%, and from others (Schiff, Paul) that inflation, as it used to be measured, is about 11-12%. Would anyone be willing to post sources for these numbers or specifics as to what methods were used to reach these numbers? Thanks.

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