All inflation figures on this page are year-over-year percent changes in seasonally adjusted CPI-U indexes from the Bureau of Labor Statistics, computed as (index today ÷ index twelve months earlier − 1) × 100. Real wage growth deflates average hourly earnings by headline CPI using the exact ratio form rather than simple subtraction, which matters when rates are large. Percentile context lines rank the latest reading against each series’ full published history using a midrank convention.
What CPI-U captures: the average price change of a fixed-weight basket of goods and services purchased by urban consumers, covering roughly 90 percent of the U.S. population, with substitution handled by geometric means within item categories. What it does not capture: rural households; any individual household’s actual basket — renters, drivers, and people with heavy medical spending face materially different inflation rates than the average; the cost of buying a house, which enters only indirectly through owners’ equivalent rent; and quality change, which BLS adjusts for imperfectly. Shelter measures lag market rents by a year or more by construction.
Average hourly earnings is a workforce-composition-sensitive measure: when low-wage workers lose jobs disproportionately (as in 2020), the average rises mechanically without anyone getting a raise. It covers private-sector employees only and excludes benefits. The purchasing-power calculator assumes the national CPI-U basket throughout; a household’s true experience depends on what it actually buys and where it lives.