Accepted a job, but have an interview tomorrow that may pay me more

I accepted a job at Nordstrom. The base pay is $15.25 but it’s technically full commission and “you earn what you sell” (it’s only 8% I believe). However, I have an interview tomorrow and on Indeed, their pay range states $15-$18. How would I discuss getting paid $17-18? Should I mention Nordstrom at all?

Thanks for your help!

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