$100 in the 70's
https://www.in2013dollars.com › us › inflation › 1975
$1 in 1975 is worth $5.94 today - Inflation Calculator
When using the core inflation measurement, $1 in 1975 is equivalent in buying power to $6.03 in 2025, a difference of $5.03. Recall that the
https://www.in2013dollars.com › us › inflation › 1991
$1 in 1991 is worth $2.35 today - Inflation Calculator
Value of $1 from 1991 to 2025 … $1 in 1991 is equivalent in purchasing power to about $2.35 today, an increase of $1.35 over 34 years. The dollar had an average …