Someone please help with this two part question I feel like I have tried everything! Keep in mind I use a Casiofx-9750II calculator. I have it set to BEG for this question. I solved for cost of debt to be 9%. I felt I was on the right track but I don't know anymore. This one has me stumped

Your firm will wither purchase or lease a new fabricator. If purchased, the fabricator will cost $940,000 and be depreciated for tax purposes on a straight-line basis over five years. The fabricator has no residual value at the end of the five years. Your firm can also lease the fabricator for five years (payments are made at the start of the year). The firm can borrow at 15% pre-tax. Assume that the tax deductibility benefit of the lease payments occurs at the time the lease payments are made.

1. If the firm's corporate tax rate is 40%, what would the before-tax lease payment have to be to make your firm indifferent between leasing and buying the fabricator?

A) $166,467

B) $254,537

C) $152,722

D) $277,445

E) There is not enough information

2. Pretend now that your firm pays no taxes, but all other details are as given above. Suppose the lessor has set the lease payment at $230,000. What would be the NAL for your firm?

A) $53,355

B) $169,004

C) $-239,147

D) $-123,497

E) $345,857