CHAPTER 12 Capital investment 529
APPENDIX 12B
Calculating net present value
To solve the problem in illustrative example 12.4, clear your calculator and enter the information shown
below.
1.1 1/x × 30 = M+ C [Result is 27.2727]
1.1 x^2 1/x × 60 = M+ C [Result is 49.5868]
1.1 yx 3 = 1/x × 50 = M+ C [Result is 37.5657]
1.1 yx 4 = 1/x ×
−
100 = M+ C [Result is 68.3013]
RCL [Result is 182.72366] 120 = [Result is 62.7266]
Note that on some calculators, the yx button is shown as ^ and the 1/x button is shown as x–1. M+ is the
memory-in button, C is the clear button and RCL is the memory recall button.