A socio-ecological system consists of 'a bio-geo-physical' unit and its associated social actors and institutions.
Contribution Margin. Contribution margin is a productâs price minus all associated variable costs, resulting in the incremental profit earned for each unit sold. The total contribution margin generated by an entity represents the total earnings available to pay for fixed expenses and to generate a profit. The contribution margin concept is useful for deciding whether to allow a lower price in special pricing situations.
In business, a product's contribution margin measures the amount of revenue left over once you have paid the variable costs related to the product itself. Variable costs often change depending on sales volume, so a contribution margin analysis helps managers determine how to set their prices and sales goals to ...