## Answers

1 | ||

Annual cost savings | 400000 | |

X PV factor | 4.675 | =(1-(1.20)^-15)/0.20 |

Present value of Annual cost savings | 1870000 | |

Less: Investment cost | 2500000 | |

Net present value | -630000 | |

2 | ||

Negative Net present value to offset | 630000 | |

Divide by PV factor | 4.675 | |

Minimum dollar value | 134759 |

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