Casio FC-200V User Guide - Page 56

• Though I is a financial calculation variable, it is also used by arithmetic and function operations in the COMP Mode. A Calculation Formulas u NPV NPV = CF0 + CF1 (1+ i) + CF2 (1 + i )2 + CF3 (1 + i )3 + ... + CFn (1 + i )n I % i = 100 n: natural number up to 79 u NFV NFV = NPV × (1 + i )n u IRR IRR is calculated using Newton's Method. 0 = CF0 + CF1 + (1+ i) CF2 + (1 + i )2 CF3 + (1 + i )3 ... + CFn (1 + i )n In this formula, NPV = 0, and the value of IRR is equivalent to i × 100. It should be noted, however, that minute fractional values tend to accumulate during the subsequent calculations performed automatically by the calculator, so NPV never actually reaches exactly zero. IRR becomes more accurate the closer that NPV approaches to zero. u PBP {0 CF0 > 0) PBP = n - NPVn ... (Other than NPVn+1 - NPVn those above) Σn NPVn = CFk k = 0 (1 + i)k n: Smallest positive integer that satisfies the conditions NPVn < 0, NPVn+1 > 0, or 0. E-54