Assuming that your data is in column B, starting in cell B2, and the data referred to by "...depending upon a data given in a column" starts in C2, then, if you mean that this data are:
1. Multipliers, such as 1.01, 1.21, 0.985, etc.:
In D2, enter =B2*C22, Copy, and Paste down. Highlight column B2:down, do a Copy, click on Edit, Paste Special, and select Values. Now, do a Cut, and Paste in B2:down.
2. New data:
Highlight the column with the new data, C2:down, do a Copy, go to B2, do an Edit, Paste Special, select Values.
Hopefully, the above will either solve your problem, or show you a method to solve your problem.