Hello, I know that this topic has been raised a lot and from what I've read so far, a difference of 3-4% in the currency exchange rate is normal.
However, for Naira, this discrepancy is up to 9%!
I have also noticed that despite the claim that the exchange rate is updated regularly, the exchange rate for Dollar to Naira on Upwork has remained $1 to 332.1913 Naira for the past two years. Not even a change in the decimals.
I do believe this is a problem that needs attention.
Exchange rates are not "Upwork's exchange rates - Upwork has no control over that metric. There are plenty of threads on this topic - like this one that was addressed/answered by an Upwork forum mod: https://community.upwork.com/t5/Freelancers/Exchange-rate-is-not-properly-updated/m-p/519188#M315909
It's helpful to do a forum search before starting a new thread on a subject covered many times over.