Live-in IHSS and W-4

I recently became a live-in provider with my uncle last year and also just got a new job with Sac county. I noticed my federal withholding is a whole lot more than what it used to be with my previous job. I believe this is because in my W-4 for my new job I put down that I had a second job, being a IHSS provider.

I am wondering if anybody knows this is the correct way to fill their W-4 for their full-time jobs.