Lagos is quite expensive but comparable to cities like London, New York or LosAngeles. Weekly grocery bill is comparable with the western world and most familiar brands can be found. Mobile phone calls on local networks are cheaper. To get a local SIM card (phone number) you need to have your passport and have fingerprints taken. High class restaurant meal for two (high quality) including wine are between $100 and $150. You can find equal quality in smaller establishments for much less, $40 per head including wine.