diff --git a/Elwig/Windows/BaseDataWindow.xaml.Season.cs b/Elwig/Windows/BaseDataWindow.xaml.Season.cs
index 50047e7..e770c77 100644
--- a/Elwig/Windows/BaseDataWindow.xaml.Season.cs
+++ b/Elwig/Windows/BaseDataWindow.xaml.Season.cs
@@ -178,12 +178,14 @@ namespace Elwig.Windows {
                         CalcMode = s?.CalcMode ?? 0,
                     });
                     if (s != null && d.CopyModifiers) {
+                        int mult = d.Precision > s.Precision ? (int)Math.Pow(10, d.Precision - s.Precision) : 1;
+                        int div = d.Precision < s.Precision ? (int)Math.Pow(10, s.Precision - d.Precision) : 1;
                         ctx.AddRange(s.Modifiers.Select(m => new Modifier {
                             Year = year,
                             ModId = m.ModId,
                             Ordering = m.Ordering,
                             Name = m.Name,
-                            AbsValue = m.AbsValue,
+                            AbsValue = m.AbsValue * mult / div,
                             RelValue = m.RelValue,
                             IsStandard = m.IsStandard,
                             IsQuickSelect = m.IsQuickSelect,