Journal of Applied Mathematics / 2014 / Article / Tab 7

Research Article

Evaluation of Underground Zinc Mine Investment Based on Fuzzy-Interval Grey System Theory and Geometric Brownian Motion

Table 7

Discounted cash flow over production period 2017–2021.

20172018201920202021

(mill’s USD) 2.279, 7.466 1.974, 7.360 1.672, 7.269 1.374, 7.192 1.079, 7.131
(mill’s USD) 2.965, 3.845 2.956, 3.956 2.956, 4.029 2.952, 4.208 2.968, 4.301
−1.566, 4.501 −1.982, 4.404 −2.357, 4.313 −2.834, 4.240 −3.222, 4.163
Discount factor 1.07, 1.10 1.14, 1.21 1.23, 1.33 1.31, 1.46 1.40, 1.61
Present value −1.423, 4.206 −1.638, 3.863 −1.772, 3.506 −1.941, 3.236 −2.001, 2.973