The purchasing power of the US dollar is down 9.4% since Joe Biden was elected in November 2020, just sixteen months ago
Percent change from a year ago is shown
From 38.4 to 34.8 on the index = 9.375%.
From the spring to the summer of 1933 when FDR confiscated gold and devalued the dollar from $20 to $34 (70%), the decline in this index was 5%, and then 14% by 1940.