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.
Contribution Margin Definition. Contribution margin (CM), defined as selling price minus variable cost, is a measure of the ability of a company to cover variable costs with revenue. The amount leftover, the contribution, covers fixed costs or is profit. Contribution margin means a measurement of the profitability of a product.