The net profit margin, or simply net margin, measures how much net income or profit is generated as a percentage of revenue. 
It is the ratio of net profits to revenues for a company or business segment. Net profit margin is typically expressed as a percentage but can also be represented in decimal form.
<h3>How do we calculate net profit margin?</h3>
Net profit margin is calculated by dividing the net profits by net sales, or by dividing the net income by revenue realized over a given time period.
<h3>What is good net profit ratio?</h3>
For example, in the retail industry, a good net profit ratio might be between 0.5% and 3.5%. 
Other industries might consider 0.5 and 3.5 to be extremely low, but this is common for retailers. In general, businesses should aim for profit ratios between 10% and 20% while paying attention to their industry's average.
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A model used to illustrate the trade-offs related to splitting resources between the production of two items is called the Production Possibilities Curve (PPC). 
<h3>How do economic actors calculate costs to specialize products?</h3>
The PPC is a useful tool for demonstrating the ideas of scarcity, opportunity cost, efficiency, and economic development and contraction.
Exchange possibilities that lead to consumption opportunities outside of the PPC are the consequence of production specialization based on comparative advantage rather than an absolute advantage. 
In contrast to what would have been achievable domestically, trade between two agents or countries enables the countries to enjoy a higher overall output and level of consumption.
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PPCs can be used to decide who should specialize in a certain good as well as opportunity costs and comparative advantages. 
A nation or individual will be able to consume at a point beyond its PPC through specialization and commerce, assuming the terms of trade are advantageous (for example, offering each agent a cheaper opportunity cost than could be accomplished without trade).
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Overhead costs are those expenses which includes fees in repairs, rents, insurance, taxes, utilities, bills, expenditures, advertising, labor, and accounting fees. Overhead costs include so many factors that it is difficult to be classified into one. These costs are influenced by many issues which results in higher or lower payments. The answer for this is TRUE.
        
             
        
        
        
Answer:
B. False
Explanation:
It is false at least because 3 reasons: Sweetland is not intervening in the economy by executing economic activities, all are based on private effort. Sweetland is not changing the regulatory framework to change the rules of the economy, so market forces command prices and levels of supply and demand. Sweetland is using a well recognized public function (taxes) to improve a social outcome (income inequality), that is not related to economy
 
        
             
        
        
        
Answer:
The correct answer is: ecology.
Explanation:
Cultural ecology systems comprise the steps that individuals take to adapt to their surrounding atmosphere. This cultural system involves allocating materials and lands in their most efficient form for the common good of the population. Cultural ecology systems also include the social adaptation of individuals within the same shared environment.