$100 in 1949. $3,057.89 in 2020. The inflation rate in Australia between 1949 and 2020 was 2,957.89%, which translates into a total increase of $2,957.89. This means that 100 dolars in 1949 are equivalent to 3,057.89 dolars in 2020. For example, the units might be dollars/year (read as “dollars per year”) or pounds/ person (read as “pounds per person”). Between 1850 and 1950 the median age in the United States rose from 18.9 to 30.2, but by 1970 it had dropped to 28.0. a. Calculate the average rate of change in the median age between 1850 and 1950. b. Dec 10, 2020 · Convert 1 US Dollar to British Pound. Get live exchange rates, historical rates & charts for USD to GBP with XE's free currency calculator.