Weapon base damage *( 1- bulletproof vest damage reduction) = damage suffered by the player.
The higher the level of body armor, the more damage will be reduced. Once hypothyroidism is 25%, second hypothyroidism is 35%, and third hypothyroidism is 55%.
Take AKM's third-class a as an example. Damage suffered by the player =48(AKM basic damage) *( 100%-55%)=2 1.6, which means it will fall after five shots.
The specific situation may vary according to the player's equipment and operation.