This is a sentence extracted from a book named “Into thin air”:
I’d written more than sixty pieces for Outside over the previous fifteen tears, and seldom had the travel budget for any of these assignments exceeded two or three thousand dollars.
I don’t know why it is exceeded but not exceeding. According to Oxford dictionary exceed something means to be greater than a particular number or amount and this is the example offered:
The price will not exceed £100
Therefore, in the sentence above, I would expect it is:
[...] seldom had the travel budget for any of these assignments which exceeded two or three thousand dollars.
When a reduced relative clause is used, it should be
[...] assignments exceeding two or three thousand dollars.
I wonder whether that is the causative form “have something done” in the origin sentence but I still can’t make out why they use it.