What is capital depreciation?
capital depreciation is The decline in value of capital assets (assets of a permanent or fixed nature, such as goods and plant) with use over time. The rate and amount of depreciation is calculated by a variety of different methods (e.g. straight line, sum of the digits, declining balance), which often give quite different results.
source: A GLOSSARY OF TERMS FOR COMMUNITY HEALTH CARE AND SERVICES FOR OLDER PERSONS. World Health Organization, 2004.