The article discusses the methods used for monitoring and measuring actual sales volume against forecasted ones, including control charts, Z charts, and error analysis. It also evaluates various budgeting methods, such as incremental, activity-based, zero-based, performance-based, and periodic budgeting, highlighting the effectiveness of zero-based budgeting in supporting sales forecasts. Additionally, it examines fund allocation methods to sales teams, identifying percentage of sales last year as a good method, and discusses variance analysis methods for identifying causes of variances and possible actions for addressing them.