Flexible budgets are one way companies deal with different levels of activity. A flexible budget provides budgeted data for different levels of activity. Another way of thinking of a flexible budget is a number of static budgets. For example, a restaurant may serve 100, 150, or 300 customers an evening. If a budget is prepared assuming 100 customers will be served, how will the managers be evaluated if 300 customers are served? Similar scenarios exist with merchandising and manufacturing companies. To effectively evaluate the restaurant's performance in controlling costs, management must use a budget prepared for the actual level of activity. This does not mean management ignores differences in sales level, or customers eating in a restaurant, because those differences and the management actions that caused them need to be evaluated, too.