I am trying to write a formula to add up a range of cells but only add up the first and the last of the cells that show a numerical value.
So in the 3rd row it would add the 21 in the Monday and the 21 in the Wednesday column , in the 8th row it would add the 18 in the Tuesday column and the 18 in the Wednesday column, in the last row it would add the 18 in the Monday columns and the 18 in the Wednesday column.
Any help is greatly appreciated. Thank you,