麻烦会计达人 看下这个题~~谢谢~~

同求达人解惑： 500,000 pounds has already been spent on development costs of the product; this has been charged in the income statement in the year it was incurred. ” 这个我觉得是sunk cost..但突然不确定了。。 谁来解说一下，这个到底为什么要放在题里说呢？

Payback CalculationYear 0Year 1Year 2Year 3Year 4Year 5£m£m£m£m£m£m       Initial Investment-1     

Profit before Tax 0.20.30.30.30.3Add back Depreciation 0.20.20.20.20.2Cumulative 'Cash flow'-1-0.6-0.10.40.91.4

the evaluation methods provide a positive NPV (108,419) and an acceptable Payback period (2.5 years);

老师给的答案~~  

谢谢回复的亲们~~

原来不用把working capital算在initial investment里面呀
还有，这个operatial cash flow 也不用扣税的
只是，这个payback period是怎么弄的， 不扣税算出来静态的应该是2.2年呀。。