Answer:
Provided in Explanation
Explanation:
This is a very general question however I’ll try to answer it to the best of my knowledge.
If I use my own assumptions then these will be the Projections:
Selling Price         $79.99  Selling Price         $69.99
Cost of Sales/unit	$40.00  Cost of Sales/unit	$40.00
Expenses/unit	$15.00  Expenses/unit	$15.00
    
Demand @ $79.99	1000	Demand @ $69.99	1200
    
Sales         $79,990.00  Sales         $83,988.00
Cost of Sales	$40,000.00  Cost of Sales	$48,000.00
Expenses	$15,000.00  Expenses	$18,000.00
Profit        $24,990.00        Profit         $17,988.00
The final decision however relies on the Price Elasticity of the Product. If the Product is Price elastic then lowering the Price will lead to a significant rise in Demand. However if the Product is Price inelastic then lowering the Price will not lead to a significant rise in Demand and thus profit margins will be lowered. If the Product is Price inelastic then it is better to increase prices in order to gain more profits. In the case of Unit Elasticity the change in Demand will be at the same proportion as price change so it won’t be of any use to change the Price.
 
        
             
        
        
        
An Artificial Monopoly is a very huge firm wherein the production efficiency has no advantage over smaller firms but thrives all competitors out of business, remaining the sole producer of the industry. 
        
             
        
        
        
A change in depreciation method is treated as a change in estimate that is achieved by a change in accounting principle, and is accounted for prospectively in the current and future periods.
The rules and regulations that businesses and other organizations must abide by when reporting financial data are known as accounting principles. These regulations standardize the terminology and procedures that accountants must employ, making it simpler to analyze financial data.
A unified set of accounting guidelines, methods, and standards known as generally accepted accounting principles (GAAP) were released by the Financial Accounting Standards Board (FASB).
The consistency that accounting principles establish enables more accurate and effective viewing of financial statements and reporting for businesses.
Learn more about  accounting principles here
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I believe that is an example of <span>disengagement theory.
</span><span>disengagement theory believe that a person will eventually disengage with his/her current social group as he/she got older.
This could happen either because that person already accomplish their final fulfillment in life or could no longer relate with the value that held by the current social group.</span>