The graph of the following curve is given.Find the area that it encloses. 
Definitions:
Direct Labor Costs
Expenses related to the work of employees who are directly involved in the production of goods or the delivery of services.
Portfolio Analysis
A systematic process of evaluating the elements of a portfolio, assessing their performance, risk, and interrelations, to inform strategic decisions and optimize returns.
Spend Map
A visual representation that depicts an organization's expenditure across different departments, suppliers, or categories, often used to identify cost-saving opportunities.
Multiple Sourcing
The strategy of procuring a particular product or service from more than one supplier in order to reduce dependency on any single source and increase reliability and competitiveness.
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