A B c

1 Project Start Date Jan-10

2 Project Duration 25


3 Project Cost
1000000


In B6 i wriiten formula IF(ROWS($1:2)-1C$2,"",ROWS($1:2)-1)
In D6 i written formula IF(B6="","",B6/$C$2)
in E6 i writtend formula
IF(D6<=33.33%,(($I$1*D6^2)*100),IF(D6<=66.67%,($I$ 2*D6+$I$3),IF(D6=66.67%,($I$4+$I$5*D6+$I$6*D6^2)* 100,"")))

In F6 i have written IF(B6="","",E6*$C$3)


the formula in B6 is copied down till B40 so that when i change number in
c2 it changes automatically .
My problem is in E31 onwards the formula shows # value and F31 onwards it
shows 0 when i plot graph .
If any body did't understand please send me mail i will forward the file to
them
Thanks and Regards
ALL IS WELL