Self-employed CSS profile

I am an international senior high school student planning to apply for US colleges in the current admission cycle. I started filling the CSS Profile to apply for need-based financial aid and I struggled with the “Parent income” section.

Before I list my questions, you should know that my mother is the founder of a pharmacy, and that my father works as a pharmacist in that pharmacy.

So, my questions are

  1. Suppose my mother’s income from work is $10000, should I enter that amount in the “Mother’s income” section, in the net business income section, or both?

  2. Should I enter both my parents’ incomes in the “total compensation from employer” section or only my father’s?

  3. What sections in the “total compensation from employer” “parent income” and “net business income” should include taxes?

  4. Should the Mother’s income include all revenue from the pharmacy or only the profits? (Suppose she generates $20000 of revenue before subtracting salaries, and $10000 after subtracting taxes and salaries, should I enter $20000 or $10000 in the “Mother’s income” section?)

That’s all, I have been struggling with these for quite a while and I am hoping for an answer.