Your Scavenging perk adds: [Amount] x [Materials].
Scavenging comes in 3 ranks, each giving an increased chance and amount of materials, and an item with a level of 20 also increases the chance further without changing the amount of materials. The effective number of kills on average to obtain 1 component is calculated below. The expected number of materials that will be obtained in a random 10,000 kill sample are also shown.