During the synthesis stage of the cell cycle, a cell makes (replicates its own) DNA.
Economic profits equals total revenues minus the sum of explicit costs and implicit costs. Since explicit costs are already subtracted when arriving at the accounting profit, we can find economic profit by subtracting the implicit costs from the accounting profit.
Explicit Cost is the cost which is actually incurred by the organization, during production. On the other hand Implicit Cost, are just opposite to the explicit cost, as they are not directly incurred by the organization, but they are implied in nature which do not involve cash payment.