What number of visits is required to provide you with an after-tax profit of $100,000? Tax is 30%, fixed costs are $257,500 and contributions costs per visit $34. My problem is where and how in to...

What number of visits is required to provide you with an after-tax profit of $100,000? Tax is 30%, fixed costs are $257,500 and contributions costs per visit $34.

My problem is where and how in to plugg in the 30% tax. Could you show me your answer including your 30% tax conversion.