Hi Bala,

Look he

http://www.mcgimpsey.com/excel/accumulator.html

--
Kind regards,

Niek Otten
Microsoft MVP - Excel

"Bala" wrote in message ...
| Hello all
|
| In Excell i need help from u all
|
| i have three cells
|
| 1st cell= 1000
| 2nd cell=10
| 3rd cell= (1st cell -2nd cell)
|
| now i get in 3rd cell as 990
| if again i give 20 in 2nd cell
| the third cell shouls display as 970 not 980
|
| how to do this in excell
| please help me
|
| Reagrds
| Bala