Toughness feat

I am running the game Armies of darkness using the pathfinder sheet by:Samuel Marino, Nibrodooh, Vince, Samuel Terrazas and a player wants the feat Toughness to add +3 hp at first and +1 every level after. I read a post with the formula but it leaves out the con calculation so it did not seem to add up right.

The default formula used on the sheet is (@{CON-mod} * @{level}) + @{total-hp}) ((@{CON-mod} * @{level}) + @{total-hp} + (5 * @{condition-drained})) This is an editable field so that you can modify it if you want. I think the best way to handle Toughness is to just adjust your HP manually for the additional +1HP per level-up. You could modify the current HP max formula to account for Toughness as well. ((@{CON-mod} * @{level}) + @{total-hp} + (5 * @{condition-drained}) + [[ 1 ]] [ Toughness ] + [[ 3*{@{selected|level},1}kl ]] [ Toughness ] ) EDIT: updated the formula to the one actually used on the current sheet. I copied from an old character. New sheet uses conditions.