Answer: Excessive cost
Step-by-step explanation:
Zero-based budgeting is the sort of budgeting where when income is subtracted from expenses it gives zero. This sort of budgeting puts a measure of the expenses, it ensures the expenses matches the income. The purpose of the budget plan is to justify expenses and optimize cost, thereby look out for cost effective ways to plan and avoid inflated budgets. It primarily guides against excessive costs on projects.