Box 3–4: Formulas for Current Rent Method II
total mineral reserve value_t_ = V_t_ =
[
p_t_ - a_t_ - K_t_/R_t_]
R_t_
additions_t_ =
[ p_t_ - a_t_ - K_t_/R_t_
] * A_t_
depletions_t_ =
[ p_t_ - a_t_ - K_t_/R_t_
] * q_t_
revaluations_t_ = V_t_ - V_t-1_ + depletions_t_ - additions_t
where variables are as
defined in Box 3.3.