The tax shouldn't be there to begin with, but that is another thread...
In 2013, the relative value of $200.00 from 1934 ranges from $2,760.00 to $50,200.00.
A simple Purchasing Power Calculator would say the relative value is $3,480.00. This answer is obtained by multiplying $200 by the percentage increase in the CPI from 1934 to 2013.
This may not be the best answer.
The best measure of the relative value over time depends on if you are interested in comparing the cost or value of a Commodity , Income or Wealth , or a Project . For more discussion on how to pick the best measure, read the essay "Explaining the Measures of Worth."
If you want to compare the value of a $200.00 Commodity in 1934 there are three choices. In 2013 the relative:
real price of that commodity is $3,480.00
labor value of that commodity is $8,410.00(using the unskilled wage) or $10,600.00(using production worker compensation)
income value of that commodity is $20,100.00
If you want to compare the value of a $200.00 Income or Wealth , in 1934 there are three choices. In 2013 the relative:
historic standard of living value of that income or wealth is $3,480.00
economic status value of that income or wealth is $20,100.00
economic power value of that income or wealth is $50,200.00
If you want to compare the value of a $200.00 Project in 1934 there are four choices. In 2013 the relative:
historic opportunity cost of that project is $2,760.00
labor cost of that project is $8,410.00(using the unskilled wage) or $10,600.00(using production worker compensation)
economy cost of that project is $50,200.00
Citation
Samuel H. Williamson, "Seven Ways to Compute the Relative Value of a U.S. Dollar Amount, 1774 to present," MeasuringWorth, 2014.