Question: The Dow Jones Industrial Average reached a high of $7801.63 on December 29, 1997. Recall from Section 15.4 that it reached a high of $842.00 on December 29, 1970. The Consumer Price Index averaged 38.8 for 1970; for 1997, it averaged 160.5. By what percentage did the high in the DJIA increase from December 29, 1970, to December 29, 1997, after adjusting for inflation?