The amount of capital equipment used up or destroyed is called the

Consumption of fixed capital (CFC)

Explanation:

Consumption of fixed capital (CFC) is a phrase used for the depreciation of fixed assets ,or write-offs, in business accounts, tax assessments and national accounts.

CFC is used in addition to depreciation to demonstrate how fixed capital is used up as a result of creating new revenue.

CFC can also include certain expenses incurred in the use or construction of fixed assets beyond real depreciation costs.

The term normally applies only to manufacturing companies, but it sometimes also applies to real estate assets.

the investment was $14,174.196

explanation:

a lump sum means that the father of the example made one deposit and leave it be.

we need to know the value of a capital that generated at 4.05% per year during 28 years the sum of $48,613.24

now clearing the formula to solve for capital we got:

and we reach the answer investment = $14,174.20