Final answer:
The practice of maintaining budgets for the same number of future periods, revising those budgets as each period is completed and adding a new budget each period, is called rolling budgets or rolling financial forecasts.
Step-by-step explanation:
The practice of maintaining budgets for the same number of future periods, revising those budgets as each period is completed and adding a new budget each period, is called rolling budgets or rolling financial forecasts.