While entrepreneur is a type of decisional role, leader is a(n) interpersonal role.
<h3>Who is an entrepreneur?</h3>
An entrepreneur is an individual who is responsible for making decisions regarding the control, financing and organization of a business.
<h3>Who is a leader?</h3>
A leader is an individual who is either elected or appointed to oversee the activities of a particular group of people at a particular time. He must be able to interact effectively with his followers in order to ensure unity and progress.
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Answer:
Contribution margin ratio = 1 - variable cost ratio
= 25%
(a) 

= 1,400,000


= 25,000
(b) For profit of $42,000,


= 1,568,000


= 28,000
(c) variable cost = sales price × variable cost ratio
= $56 × 75%
= $42
New contribution margin = 
New contribution margin = 
= 0.4
= 40%


= $875,000


= 12,500
Electricity consumed in the manufacturing process is inventoriable cost per unit using variable costing.
Variable costing is that concept which is used in managerial and cost accounting. In this type of costing the fixed manufacturing overhead is excluded from the product-cost of production.
The method contrasts with absorption costing, in which the fixed manufacturing overheads are allocated to products which are produced. In accounting frameworks such as GAAP and IFRS, variable costing cannot be used in financial reporting.
Although accounting frameworks such as GAAP and IFRS prohibits the use of variable costing in financial reporting, this costing method is commonly used by managers.
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