т.е вся фраза:
Необходимые Периодические Затраты (просят назвать сумму, включив все известные затраты, чтобы оценить, во что обойдется владение)

см.
In June 2013, the World Gold Council (WGC) published a guidance note on the all-in sustaining cash cost metric for gold mining companies (GDX). This way, investors can have a better evaluation on the real cost of mining gold. This metric adds additional costs, which reflect the varying costs of producing gold over the life-cycle of a mine. To name a few: by-product cash costs, sustaining capital, corporate general and administrative expenses, and exploration costs. ****We calculate all-in sustaining costs as the sum of total cash costs (net of byproduct credits), sustaining capital expense, corporate, general and administrative expense (net of stock option expense) and exploration expense