change value of a cell, when other cells are updated

Suppose i edit the data in a cell, then that change should be reflected in other cell which is based on it.
Like in excel, suppose a cell f1 = (b1/c1-1)*100. then when i change values of b1 or c1, the value of f1, will automatically be updated.

how can i achieve the above scenario in DHTMLX Grid?

Please, read this tutorial