Why did yu 'ebao decline? Enterprise due to withdraw, and transfer or liquidation disposal of equity investment and equity investment losses, can be in pre-tax deduction, but the deduction of each tax year equity investment losses, shall not exceed the implementation of equity investment income and transfer income, more than part can be to a tax year after deduction carry forward indefinitely. There is no ambiguity in the objective of the concrete plan. For example, business sales managers intend to increase sales by 15 percent over the next six months, and he will formulate specific procedures, budget plans, and schedule schedules, which is the concrete plan. Guideline plans only some general guidelines and action principle, favors the actors free disposition, it points out that the key but don't limit actors on the specific target or specific action plan. For example, a specific plan to increase sales may require a 15 per cent increase in sales over the next six months, while a guidance plan may limit sales by 12 to 16 per cent over the next six months. Compared with the guidance plan, the concrete plan is easier to carry out, assess and control, but lacks the flexibility, and its requirements for clarity and predictability are often difficult to satisfy. (3) monetary benefits -- increase the monetary value of assets. There are both measurable and unquantifiable benefits in these three different forms of income. Among them: mental income is too strong to measure, monetary gain is easy to measure because of the static concept of value change. Economists, therefore, focus only on actual earnings.