diff --git a/include/battle_ai_util.h b/include/battle_ai_util.h
index 700527dbeb61..36ce1cdda50e 100644
--- a/include/battle_ai_util.h
+++ b/include/battle_ai_util.h
@@ -4,8 +4,8 @@
 #define FOE(battler) ((BATTLE_OPPOSITE(battler)) & BIT_SIDE)
 
 // Roll boundaries used by AI when scoring. Doesn't affect actual damage dealt.
-#define MAX_ROLL_PERCENTAGE 100
-#define MIN_ROLL_PERCENTAGE 85
+#define MAX_ROLL_PERCENTAGE DMG_ROLL_PERCENT_HI 
+#define MIN_ROLL_PERCENTAGE DMG_ROLL_PERCENT_LO
 
 enum
 {
diff --git a/include/battle_util.h b/include/battle_util.h
index 2bfc9cba9e3c..9638cf1a77e0 100644
--- a/include/battle_util.h
+++ b/include/battle_util.h
@@ -66,6 +66,10 @@ enum {
 #define IS_WHOLE_SIDE_ALIVE(battler)    ((IsBattlerAlive(battler) && IsBattlerAlive(BATTLE_PARTNER(battler))))
 #define IS_ALIVE_AND_PRESENT(battler)   (IsBattlerAlive(battler) && IsBattlerSpritePresent(battler))
 
+// Lowest and highest percentages used for damage roll calculations
+#define DMG_ROLL_PERCENT_LO 85
+#define DMG_ROLL_PERCENT_HI 100
+
 // for Natural Gift and Fling
 struct TypePower
 {
diff --git a/src/battle_ai_util.c b/src/battle_ai_util.c
index 7a39d15c69f5..d3645bfdefd8 100644
--- a/src/battle_ai_util.c
+++ b/src/battle_ai_util.c
@@ -391,9 +391,9 @@ static inline s32 HighestRollDmg(s32 dmg)
     return dmg;
 }
 
-static inline s32 AverageRollDmg(s32 dmg)
+static inline s32 AverageDmg(s32 dmg)
 {
-    dmg = ((HighestRollDmg(dmg) + LowestRollDmg(dmg)) * 100) / 2;
+    dmg = (dmg * (MIN_ROLL_PERCENTAGE + MAX_ROLL_PERCENTAGE)) / 2;
     dmg /= 100;
     return dmg;
 }
@@ -559,7 +559,7 @@ s32 AI_CalcDamage(u32 move, u32 battlerAtk, u32 battlerDef, u8 *typeEffectivenes
             u32 critChance = GetCritHitChance(critChanceIndex);
             // With critChance getting closer to 1, dmg gets closer to critDmg.
             if (dmgRoll == DMG_ROLL_AVERAGE)
-                dmg = AverageRollDmg((critDmg + normalDmg * (critChance - 1)) / (critChance));
+                dmg = AverageDmg((critDmg + normalDmg * (critChance - 1)) / (critChance));
             else if (dmgRoll == DMG_ROLL_HIGHEST)
                 dmg = HighestRollDmg((critDmg + normalDmg * (critChance - 1)) / (critChance));
             else
@@ -568,7 +568,7 @@ s32 AI_CalcDamage(u32 move, u32 battlerAtk, u32 battlerDef, u8 *typeEffectivenes
         else
         {
             if (dmgRoll == DMG_ROLL_AVERAGE)
-                dmg = AverageRollDmg(normalDmg);
+                dmg = AverageDmg(normalDmg);
             else if (dmgRoll == DMG_ROLL_HIGHEST)
                 dmg = HighestRollDmg(normalDmg);
             else
diff --git a/src/battle_util.c b/src/battle_util.c
index b7aab2411331..1c16baa2fdfd 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -9994,7 +9994,7 @@ static inline s32 DoMoveDamageCalcVars(u32 move, u32 battlerAtk, u32 battlerDef,
 
     if (randomFactor)
     {
-        dmg *= 100 - RandomUniform(RNG_DAMAGE_MODIFIER, 0, 15);
+        dmg *= DMG_ROLL_PERCENT_HI - RandomUniform(RNG_DAMAGE_MODIFIER, 0, DMG_ROLL_PERCENT_HI - DMG_ROLL_PERCENT_LO);
         dmg /= 100;
     }
 
@@ -10055,7 +10055,7 @@ static inline s32 DoFutureSightAttackDamageCalcVars(u32 move, u32 battlerAtk, u3
 
     if (randomFactor)
     {
-        dmg *= 100 - RandomUniform(RNG_DAMAGE_MODIFIER, 0, 15);
+        dmg *= DMG_ROLL_PERCENT_HI - RandomUniform(RNG_DAMAGE_MODIFIER, 0, DMG_ROLL_PERCENT_HI - DMG_ROLL_PERCENT_LO);
         dmg /= 100;
     }