Final answer:
Without additional context, it is not possible to accurately determine whether the solution remains optimal with the increased profit of $2.3 million annually or to calculate the new value of the objective function.
Step-by-step explanation:
The question seems to be related to an optimization problem in a business context, specifically regarding how an increase in profit affects the optimality of a solution and the value of the objective function. However, without the complete context or details about the 'above solution' mentioned in the question, it's not possible to accurately determine whether the solution remains optimal with an increased profit of $2.3 million annually. Typically, in an optimization problem, if the profit of a standard store is increased to $2.3 million annually, the overall revenue or contribution to the objective function may change, which could affect whether the current solution remains optimal. To accurately answer, we would need to know the current solution and how it is affected by the profit change. The new value of the economic profit would also need recalculation in the context of the specific problem. The example provided about economic profit shows a different scenario where total revenues and costs are given, and an economic profit is calculated, which is unrelated to the increase to $2.3 million mentioned in the question. Therefore, without the context mentioned in the question or a table to reference, a comprehensive answer cannot be provided.