The firm recently purchased a new security system for $5,390. Considering all relevant costs and discount, what is the present value of the cost if the firm pays with ACH? Disregard the cost of using an ACH (because it's a one-time transaction and because the difference is so small). Consider the following:

Transaction trade credit terms of net 45 days

ACH days of float 1 day

Discount available if pay with ACH 0.25 %

Days of float provided by check 3 days

Cost of capital 15%