diff --git a/parquet/converted_types.py b/parquet/converted_types.py
index 794ecd1e..7337881a 100644
--- a/parquet/converted_types.py
+++ b/parquet/converted_types.py
@@ -60,7 +60,7 @@ def convert_column(data, schemae):
     """Convert known types from primitive to rich."""
     ctype = schemae.converted_type
     if ctype == parquet_thrift.ConvertedType.DECIMAL:
-        scale_factor = Decimal("10e-{}".format(schemae.scale))
+        scale_factor = Decimal("1e-{}".format(schemae.scale))
         if schemae.type == parquet_thrift.Type.INT32 or schemae.type == parquet_thrift.Type.INT64:
             return [Decimal(unscaled) * scale_factor for unscaled in data]
         return [Decimal(intbig(unscaled)) * scale_factor for unscaled in data]
diff --git a/test/test_converted_types.py b/test/test_converted_types.py
index 154e912f..bc3bad21 100644
--- a/test/test_converted_types.py
+++ b/test/test_converted_types.py
@@ -28,7 +28,7 @@ def test_int32(self):
 
         self.assertEqual(
             convert_column([9876543210], schema)[0],
-            Decimal('9.87654321')
+            Decimal('0.987654321')
         )
 
     def test_int64(self):
@@ -43,7 +43,7 @@ def test_int64(self):
 
         self.assertEqual(
             convert_column([1099511627776], schema)[0],
-            Decimal('10995116277.76')
+            Decimal('1099511627.776')
         )
 
     def test_fixedlength(self):
@@ -59,7 +59,7 @@ def test_fixedlength(self):
 
         self.assertEqual(
             convert_column([b'\x02\x00\x01'], schema)[0],
-            Decimal('1310.73')
+            Decimal('131.073')
         )
 
     def test_binary(self):
@@ -74,7 +74,7 @@ def test_binary(self):
 
         self.assertEqual(
             convert_column([b'\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01'], schema)[0],
-            Decimal('94447329657392904273.93')
+            Decimal('9444732965739290427.393')
         )