CIPS Exam L4M2 Topic 10 Question 24 Discussion

A consulting firm in London had previously had static budgets. They were set once and locked in for the year. This resulted in departments meeting their budgets early and doing virtually nothing the rest of the accounting period. To address this imbalance, the company tossed out the static budget and developed a new one for each department of the next 18 months. And each month, real sales figures are analyzed against the plan and the budget is adjusted accordingly. Then the company adds another month into the budgeting plan. What type of budget this company is using?