The writers of the Billy Goat Gruff story had really observed what goats ate. Is green grass good for goats? Yes, green grass is the generally the most nutritive food available for goats and it is the cheapest food. During spring the green pasture is usually about 80% digestible and has a crude protein content of 20%. Most of the fibrous parts of the pasture are still quite digestible by the goat.
If you want to sum up a column in Excel and keep the result in your table, you can employ the AutoSum function. It will automatically add up the numbers and will show the total in the cell you select. To avoid any additional actions like range selection, click on the first empty cell below the column you need to sum.
Click on the cell where you want the Total sum to appear (e.g. D20). Now click on the AutoSum button on the toolbar. Now put the mouse cursor on the first cell you want to add up and drag it to the last cell that should be part of the formula. Note: you can use this technique for rows or columns.