How to quit after 3 weeks of working
As the title stated, I'm 19F, currently working at a small family owned retail store as a casual. And after 3 weeks, I kinda realized its not for me and that I received a better job offer that fits my Salary Preference more and social life schedule. And also because the salary we agreed upon decreased after a week of working (even when the based salary was already $27/hr now its $26.30/hr) and not paying for public Holiday rates when I was working on Friday before AFL finals. Right now I am scheduled to cover another coworker's shift next weekend. I was thinking of quiting either after next week shifts, or do I need to hand in a 2 week notices or something? It feels awkward to just leave after 3 weeks, so I'm not sure how to bring it up to my boss or even what to say. Especially since everyone at work starts to be more friendly and start teaching me all of the store systems for long term career.
Edit: Just received my paycheck for last week shifts and Now I'm getting $24.75/hr???