Improved precision for smaller decimals

Libraries/Core/Utils/RandomUtil.cs

@@ -414,10 +414,11 @@ public class RandomUtil(ISptLogger<RandomUtil> _logger, ICloner _cloner)
     /// <returns>The number of decimal places, or 0 if none exist.</returns>
     public int GetNumberPrecision(double num)
     {
+        var preciseNum = (decimal)num;
         var factor = 0;
-        while (num % 1 > double.Epsilon)
+        while ((double)(preciseNum % 1) > double.Epsilon)
         {
-            num *= 10D;
+            preciseNum *= 10M;
             factor++;
         }
         return factor;

UnitTests/Tests/Utils/RandomUtilTests.cs

@@ -188,7 +188,7 @@ public sealed class RandomUtilTests
     [DataRow(0.0001, 4)]
     [DataRow(0, 0)]
     [DataRow(10000000, 0)]
-    [DataRow(0.000_000_000_000_1D, 13)]
+    [DataRow(0.000_000_000_000_000_000_000_000_1D, 25)]
     public void GetNumberPrecision_WithDoubles_ReturnsDecimalPoints(double value, int decimalPoints)
     {
         Assert.AreEqual(decimalPoints, _randomUtil.GetNumberPrecision(value));