For reference: that's below $1 per resident.
Nigeria's GDP in 2022 was $472B, compared to US's at $25.2T, so Nigeria's total economy is roughly 2% the size of the US.
Meta / Facebook made $134B in revenue and $39B in net income (profit) last year. Assuming 1/3 of their business is in the US, that's roughly $43B revenue & $13B profit in the US last year.
If we assume their business is proportionate to GDP, they made $860M revenue & $260M profit in Nigeria last year.
So this fine is basically the company's entire profit in the country in a year.