what was the percentage cumulative total shareholder return on disca common stock from september 18 , 2008 to december 31 , 2008?
Important information:
text_2: the graph assumes $ 100 originally invested on september 18 , 2006 and that all subsequent dividends were reinvested in additional shares .
table_1: the disca of september 18 2008 is $ 100.00 ; the disca of september 30 2008 is $ 103.19 ; the disca of december 31 2008 is $ 102.53 ;
table_2: the discb of september 18 2008 is $ 100.00 ; the discb of september 30 2008 is $ 105.54 ; the discb of december 31 2008 is $ 78.53 ;
Reasoning Steps:
Step: minus1-1(102.53, const_100) = 2.53
Step: divide1-2(#0, const_100) = 2.53%
Program:
subtract(102.53, const_100), divide(#0, const_100)
Program (Nested):
divide(subtract(102.53, const_100), const_100)

Please answer the following financial question based on the context provided. Make sure to give the answer in raw number, not in percentage and without any units. If the question asks for percentage the value should be less than 1
Context:
2 0 0 8 a n n u a l r e p o r t stock performance graph the following graph sets forth the performance of our series a common , series b common stock , and series c common stock for the period september 18 , 2008 through december 31 , 2008 as compared with the performance of the standard and poor 2019s 500 index and a peer group index which consists of the walt disney company , time warner inc. , cbs corporation class b common stock , viacom , inc . class b common stock , news corporation class a common stock , and scripps network interactive , inc . the graph assumes $ 100 originally invested on september 18 , 2006 and that all subsequent dividends were reinvested in additional shares . september 18 , september 30 , december 31 , 2008 2008 2008 .
Table
           | september 18 2008 | september 30 2008 | december 31 2008
disca      | $ 100.00          | $ 103.19          | $ 102.53        
discb      | $ 100.00          | $ 105.54          | $ 78.53         
disck      | $ 100.00          | $ 88.50           | $ 83.69         
s&p 500    | $ 100.00          | $ 96.54           | $ 74.86         
peer group | $ 100.00          | $ 92.67           | $ 68.79         
s&p 500 peer group .
Question: 
what was the percentage cumulative total shareholder return on disca common stock from september 18 , 2008 to december 31 , 2008?
Important information:
text_2: the graph assumes $ 100 originally invested on september 18 , 2006 and that all subsequent dividends were reinvested in additional shares .
table_1: the disca of september 18 2008 is $ 100.00 ; the disca of september 30 2008 is $ 103.19 ; the disca of december 31 2008 is $ 102.53 ;
table_2: the discb of september 18 2008 is $ 100.00 ; the discb of september 30 2008 is $ 105.54 ; the discb of december 31 2008 is $ 78.53 ;
Reasoning Steps:
Step: minus1-1(102.53, const_100) = 2.53
Step: divide1-2(#0, const_100) = 2.53%
Program:
subtract(102.53, const_100), divide(#0, const_100)
Program (Nested):
divide(subtract(102.53, const_100), const_100)
