3 2008-08-27T08:47:55-05:00 This HP calculator is ideal for financial calculations of the sort covered in MBA and similar business courses. Functions include NPV, IRR, bond valuation, depreciation and amortization. Lewisham Lewisham 1 51.471654 -0.024894 HP12C Financial Calculator 2 SE8 5JN 4.99 2008-08-27T08:47:55-05:00