The formula for the own-price elasticity of demand for a commodity can be written as which of the following? 
Definitions:
Gap Filler
An entity or activity that addresses and provides services or resources in areas where there are unmet needs.
Nonprofit Organization
An entity that operates for charitable, educational, or social objectives rather than for profit.
Organizational Culture
The values, behaviors, practices, and social dynamics that characterize an organization and influence its members' actions and beliefs.
Unwritten Rules
Social norms or practices that are understood and followed by members of a group or organization but are not officially documented.
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