How can the use of new technology in industry benefit the us government

In 1948, the president of the united states earned a salary of $75,000. in 2000, the president earned a salary of $400,000. knowing that the cpi for 1948 is 24.1 and the cpi for 2000 is 172.2, convert the 1948 salary to constant 2000 dollars. when comparing constant dollar amounts, whose salary was worth more--harry truman, president in 1948, or bill clinton, president in 2000