How much does a makeup apprentice in a wedding dress shop usually earn?

I was an apprentice in a photo studio for four months. As a result, I studied for four months and didn't even learn eyebrows. At first, I graduated from school and knew nothing. I saw a local photo studio recruiting makeup apprentices, saying that I still have 400 yuan a month to live on, and I can be a makeup artist after learning makeup. As a result, I do odd jobs in it every day, hand out leaflets, help the guests change clothes, bring tea and water to the guests, help with clothes and carry cosmetic boxes on location, and the makeup artist rarely teaches me anything. I just watched her do it. I stayed there for four months and learned nothing. I just did odd jobs for them every day.