S.T. Ilton Co Ltd manufactures a special cheese, the current manufacturing cost and selling price of which is:
 
| 
   
Selling price 
 | 
 £ 
 | 
 £ 
200 
 | 
   
(per 100 kg) 
 | 
| 
 Variable manufacturing costs Fixed costs  (based on annual 
output of 2,000,000  kg) 
 | 
 160 
20 
 | 
   
180 
 | 
   
(per  100 kg) 
 | 
Profit                                                          20           (per  100 kg)
Because of the nature of the product it is only made to order. However, it is considered that the company  could  extend  its current sales and output of 2,000,000 kg by investing in some special storage facilities. As a result,  the company would  be  able to sell immediately from stock an additional 1,000,000 kg of cheese each year. Because the orders would be  supplied  immediately, the company may be able to charge a special sales premium over the existing selling price for the additional 1,000,000 kg. The premium is difficult to estimate with any certainty, it could be as high as 30% or it  could  be  nil.  The  probability  distribution shown below is the marketing directo's best estimate of the possible  sales  premium  likely  to be obtained.
Selling price premium over  current price
%
0
10
20
30
Probability
0.20
0.30
0.30
0.20
The new storage facilities would incur additional fixed expenses each year of £100,000, and working capital required immediately would increase by £250,000. The total cost of  the  equipment would  be  £1,500,000,  with  an 8 year  life  and a nil  scrap value.
You are required to evaluate the project to extend the storage facilities using the NPV method, assuming the company's cost of capital is 20%.