diff --git a/core/src/com/unciv/models/ruleset/Building.kt b/core/src/com/unciv/models/ruleset/Building.kt
index 43a560a713..175cd3cd0c 100644
--- a/core/src/com/unciv/models/ruleset/Building.kt
+++ b/core/src/com/unciv/models/ruleset/Building.kt
@@ -219,7 +219,7 @@ class Building : RulesetStatsObject(), INonPerpetualConstruction {
             val stats = mutableListOf("$cost${Fonts.production}")
             if (canBePurchasedWithStat(null, Stat.Gold)) {
                 // We need what INonPerpetualConstruction.getBaseGoldCost calculates but without any game- or civ-specific modifiers
-                val buyCost = 30.0 * cost.toFloat().pow(0.75f) * hurryCostModifier.toPercent() / 10 * 10
+                val buyCost = (30.0 * cost.toFloat().pow(0.75f) * hurryCostModifier.toPercent()).toInt() / 10 * 10
                 stats += "$buyCost${Fonts.gold}"
             }
             textList += FormattedLine(stats.joinToString(", ", "{Cost}: "))
diff --git a/core/src/com/unciv/models/ruleset/unit/BaseUnit.kt b/core/src/com/unciv/models/ruleset/unit/BaseUnit.kt
index 83ff8d51ed..957ab01aa6 100644
--- a/core/src/com/unciv/models/ruleset/unit/BaseUnit.kt
+++ b/core/src/com/unciv/models/ruleset/unit/BaseUnit.kt
@@ -124,7 +124,7 @@ class BaseUnit : RulesetObject(), INonPerpetualConstruction {
             stats += "$cost${Fonts.production}"
             if (canBePurchasedWithStat(null, Stat.Gold)) {
                 // We need what INonPerpetualConstruction.getBaseGoldCost calculates but without any game- or civ-specific modifiers
-                val buyCost = 30.0 * cost.toFloat().pow(0.75f) * hurryCostModifier.toPercent() / 10 * 10
+                val buyCost = (30.0 * cost.toFloat().pow(0.75f) * hurryCostModifier.toPercent()).toInt() / 10 * 10
                 stats += "$buyCost${Fonts.gold}"
             }
             textList += FormattedLine(stats.joinToString(", ", "{Cost}: "))