An attack bonus (such as from an advantageous situation or technique) increases your chance to hit your target either by increasing your attack roll or your defence DC. Attack penalties (such as from range or cover), meanwhile, do the opposite. Bonuses and penalties are written in the following format: +X/+Y. The number before the slash (X) is added to your initial roll against your opponent‚s Target score, while the number after the slash (Y) is added to the DC to defend against your attack. Most modifiers increase or decrease both ratings at the same time, but some (such as range penalties and scale) do not. For example, the Ranged Skill technique On the Exhale grants an attack bonus of +1/0, meaning that a +1 bonus is added to attack rolls, but there is no change to the DC to defend against. Conversely, the technique Shoot from the Hip imposes a -1/-1 penalty to attack, meaning that both attack rolls and defence DCs are decreased by 1 point.