I am being converted from intern to permanent employee, the HR called asked if the package of 17L per year was okay, I said ok?

But i dint consider the tax, with tax deductions i will be getting a lot less around 1190,000 a year. How do i renegotiate with HR, to get more? She would for ask for the reason, i dont wanna sound dumb

help!!!

I am being converted from intern to permanent employee, the HR called asked if the package of 17L per year was okay, I said ok?
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