Victorian period servants made almost no money, even middle class had maids and cooks. My friend lives in a very simple restored 2 bedroom Victorian house, very middle class. That 2 bedroom has a tiny maids room.
They worked mostly for room and board with a pittance for their services. For many, the security of hearth and home was a big draw toward that type of job. It was even better if the servants -- husband and wife -- were able to work for the same family.
Probably none more than I have at the present time. Even expectations for food and lodging have changed. Back then family leftovers and a small attic room (no AC) would have been sufficient. Today? Hah!