Even then, I think you can mostly get by with the tables, can't you?Uhm. Not sure I agree if you're running a game with a strong merchanter bent.
By calculating from ship mortgages and the cost of membership in the TAS, one can calculate that the interest rate in Classic Traveller is around 5%. But does anyone, even someone playing a merchant-oriented game, really worry about fluctuations in interest rates, planet-wide or sector-wide depressions, etc? Does anyone try and correlate those phenomena with the number of willing low-jump passengers (who, given the risk of death, in most cases must surely by leaving their current world in pursuit of economically better circumstances)?
I've never heard of it.