From 14a4a3ba532db92218265df4cc905b0293b990ce Mon Sep 17 00:00:00 2001
From: SwiftXP <230956466+swiftxp-hub@users.noreply.github.com>
Date: Mon, 10 Nov 2025 22:41:53 +0100
Subject: [PATCH] Only integers were used for the calculation for keys, which
 meant that only 1 or 0 could be the result. At least one value must be a
 double for the calculation to result in a double.

---
 Libraries/SPTarkov.Server.Core/Helpers/ItemHelper.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Libraries/SPTarkov.Server.Core/Helpers/ItemHelper.cs b/Libraries/SPTarkov.Server.Core/Helpers/ItemHelper.cs
index a30409f0..27cce0d6 100644
--- a/Libraries/SPTarkov.Server.Core/Helpers/ItemHelper.cs
+++ b/Libraries/SPTarkov.Server.Core/Helpers/ItemHelper.cs
@@ -616,8 +616,8 @@ public class ItemHelper(
         else if (item.Upd.Key?.NumberOfUsages > 0 && itemDetails.Properties?.MaximumNumberOfUsage > 0)
         {
             // keys - keys count upwards, not down like everything else
-            var maxNumOfUsages = itemDetails.Properties.MaximumNumberOfUsage;
-            result = (maxNumOfUsages ?? 0 - item.Upd.Key.NumberOfUsages) / maxNumOfUsages ?? 0;
+            var maxNumOfUsages = itemDetails.Properties.MaximumNumberOfUsage ?? 0d;
+            result = (maxNumOfUsages - item.Upd.Key.NumberOfUsages) / maxNumOfUsages ?? 0;
         }
         else if (item.Upd.Resource?.UnitsConsumed > 0) // Item is less than 100% usage
         {