100 MILLION troman sounds like a lot, but it turns out it's just 730 bucks.

Using pure currency conversion, sure.

The average annual income of an urban household was approximately 3.432 billion rials

Sauce. Evidently there's a factor of 10 difference between these two denominations, so you're talking about 1/3 of the average household's income. For Muricans, that's around $27k.