CALCULATE ALL DIFFERENCES BETWEEN VALUES OF CONSECUTIVE COLUMNS

hello everyone.

I need a suggestion to do this operation:

I want to replace the value 1.96 with the result of the subtraction between 1.963-1.96 so the result must be 0.003.

Similarly, instead of 1.963, the result of the subtraction between 1.966-1.963 = 0.003 must be written.

basically I have to replace the values ​​of the column with the difference between the values ​​of the following column and the current column.

This operation must be performed in all the cells of the table containing values.