diff --git a/core/define.h b/core/define.h
index 6ca3f2d..a77c332 100644
--- a/core/define.h
+++ b/core/define.h
@@ -10,8 +10,8 @@
 #define PERM_DELETE "DELETE"
 
 #define DEC_MULTIPLE 100
-#define TO_DEC(num) QDecDouble((double)num / DEC_MULTIPLE)
-#define FROM_DEC(num) num.toDouble() * DEC_MULTIPLE
+#define TO_DEC(num) (QDecDouble(num) / QDecDouble(DEC_MULTIPLE))
+#define FROM_DEC(num) (num * QDecDouble(DEC_MULTIPLE)).toInt32()
 
 #ifndef PLUGIN_ROOT
     #ifdef _WIN32
diff --git a/qdecimal/src/QDecDouble.hh b/qdecimal/src/QDecDouble.hh
index e3eeda2..139abf1 100644
--- a/qdecimal/src/QDecDouble.hh
+++ b/qdecimal/src/QDecDouble.hh
@@ -153,6 +153,10 @@ class QDECIMAL_EXPORT QDecDouble
   }
 
   double toDouble() const;
+
+  int32_t toInt32(QDecContext* c = 0) const {
+      return decDoubleToInt32(&m_data, CXT(c), DEC_ROUND_HALF_UP);
+  }
     
   QByteArray toEngString() const {
     char str[MaxStrSize] = { 0 };