diff --git a/unitc/unit.xml b/unitc/unit.xml
index 34624c4..51794a1 100644
--- a/unitc/unit.xml
+++ b/unitc/unit.xml
@@ -43,8 +43,8 @@
             />
             <unit
                 name="USD"
-                from_ref="result / 1.4573"
-                to_ref="number * 1.4573"
+                from_ref="result * 1.4573"
+                to_ref="number / 1.4573"
             />
             <unit
                 name="TWD"