Capital Consumption Allowance (CCA) and Capital Consumption are distinct concepts in economic measurement. Capital Consumption refers to the actual decline in the value of capital assets, such as machinery, due to usage, wear and tear, and obsolescence. In contrast, CCA is a tax deduction that allows businesses to allocate the cost of capital assets over time, reflecting a potential saving for future replacements. When calculating Gross National Product (GNP), it is essential to include Net National Income (NNI) alongside capital consumption, while also accounting for indirect taxes and subsidies to ensure accuracy. Consumption, in general terms, pertains to household spending on consumer goods and does not equate to capital consumption. For accurate representation of capital consumption, data on the depreciation of capital assets is necessary, as neither general consumption nor CCA alone can effectively capture this economic measure.