Healing Amplification

While a being is affected by healing amplification, they receive an additional number of hitpoints whenever they become subject to an effect that restores hitpoints. While a being is affected by healing amplification, they receive an additional number of temporary hitpoints whenever they become subject to an effect that grants temporary hitpoints. Multiple sources of healing amplification stack additively with each other.
Example: Varus is wearing a magical tunic that provides him with healing amplification 25% and is also under the effect of a spell which provides him with healing amplification 35%. He casts the Cure Moderate Wounds spell (targeting himself) and rolls 2d8 + 6; the result of his roll is a 17, but he does not gain 17 hitpoints. Instead, he gains 27 hitpoints, because 17 times (1 + 0.25 + 0.35) equals 27.2, which rounds to 27.