Depends:
Current data is only available till 2008. In 2008, $621.00 from 1930 is worth:

$8,006.18 using the Consumer Price Index
$6,593.71 using the GDP deflator
$17,325.49 using the value of consumer bundle
$25,059.69 using the unskilled wage
$39,778.12 using the nominal GDP per capita
$98,334.53 using the relative share of GDP