diff --git a/scripts/Statemachine/ItemShow.gd b/scripts/Statemachine/ItemShow.gd
index fb36137..20c2b55 100644
--- a/scripts/Statemachine/ItemShow.gd
+++ b/scripts/Statemachine/ItemShow.gd
@@ -14,7 +14,7 @@ func _ready():
 	if autoFree:
 		animator.play("show")
 		await animator.animation_finished
-		await TickTool.millseconds(GameRule.itemShowStayTime) # 等待几秒后自动隐藏
+		await TickTool.millseconds(GameRule.itemShowLifetime) # 等待几秒后自动隐藏
 		animator.play("hide")
 		await animator.animation_finished
 		queue_free()
diff --git a/scripts/Tools/GameRule.gd b/scripts/Tools/GameRule.gd
index db599f6..d78eff2 100644
--- a/scripts/Tools/GameRule.gd
+++ b/scripts/Tools/GameRule.gd
@@ -11,17 +11,17 @@ enum Difficulty {
 static var difficulty: Difficulty = Difficulty.NORMAL # 难度倍数，可以写小数
 static var allowFriendlyFire: bool = false # 是否允许友军伤害
 static var bulletSpeedMultiplier: float = 1 # 子弹速度倍率
-static var damageOffset: float = 0.2 # 伤害随机浮动比例，如20%即10的基础伤害会应用为8~12
+static var damageOffset: float = MathTool.percent(20) # 伤害随机浮动比例，如20%即10的基础伤害会应用为8~12
 static var damageLabelSpawnOffset: float = 10 # 伤害标签生成位置的随机偏移
 static var itemDroppedSpawnOffset: float = 30 # 掉落物生成位置的随机偏移
-static var appleDropRate: float = 0.1 # 苹果掉落概率
-static var refreshCountIncreasePercent: Vector2 = Vector2(0.2, 0.75) # 刷新所需的棒球数量的增加的百分比
-static var entityCountBoostPerWave: float = 0.1 # 每波敌人数量增加的百分比，倍数级
-static var itemShowStayTime: int = 1500 # 物品展示组件如果设置了自动隐藏，那么隐藏前可以存活的时间
-static var tipSpawnRateWhenGetDroppedItem: float = 0.25 # 当玩家获取到掉落物时，提示的概率
-static var entityHealthIncreasePerWave: float = 0.05 # 每波敌人生命值增加的百分比，指数级
-static var entityDamageIncreasePerWave: float = 0.02 # 每波敌人伤害增加的百分比，指数级
-static var entityLevelOffsetByWave: float = 0.3 # 每波敌人等级根据当前波数随机浮动的比例
-static var appleDropRateInfluenceByLuckValue: float = 0.02 # 幸运值对苹果掉率的影响
-static var critRateInfluenceByLuckValue: float = 0.025 # 幸运值对暴击率的影响
-static var penerateRateInfluenceByLuckValue: float = 0.03 # 幸运值对穿透率的影响
+static var appleDropRate: float = MathTool.percent(10) # 苹果掉落概率
+static var refreshCountIncreasePercent: Vector2 = Vector2(MathTool.percent(20), MathTool.percent(75)) # 刷新所需的棒球数量的增加的百分比
+static var entityCountBoostPerWave: float = MathTool.percent(10) # 每波敌人数量增加的百分比，倍数级
+static var itemShowLifetime: int = 1500 # 物品展示组件如果设置了自动隐藏，那么隐藏前可以存活的时间
+static var tipSpawnRateWhenGetDroppedItem: float = MathTool.percent(25) # 当玩家获取到掉落物时，提示的概率
+static var entityHealthIncreasePerWave: float = MathTool.percent(5) # 每波敌人生命值增加的百分比，指数级
+static var entityDamageIncreasePerWave: float = MathTool.percent(2) # 每波敌人伤害增加的百分比，指数级
+static var entityLevelOffsetByWave: float = MathTool.percent(30) # 每波敌人等级根据当前波数随机浮动的比例
+static var appleDropRateInfluenceByLuckValue: float = MathTool.percent(2) # 幸运值对苹果掉率的影响
+static var critRateInfluenceByLuckValue: float = MathTool.percent(2.5) # 幸运值对暴击率的影响
+static var penerateRateInfluenceByLuckValue: float = MathTool.percent(3) # 幸运值对穿透率的影响
diff --git a/scripts/Tools/MathTool.gd b/scripts/Tools/MathTool.gd
index faa0e53..7607e17 100644
--- a/scripts/Tools/MathTool.gd
+++ b/scripts/Tools/MathTool.gd
@@ -11,3 +11,5 @@ static func randc_from(array: Array):
 	return array[randi() % array.size()]
 static func signBeforeStr(value: float):
 	return ("+" if value > 0 else "-" if value < 0 else "") + str(abs(value))
+static func percent(value: float):
+	return value / 100