Index: theme.inc
===================================================================
--- theme.inc
+++ theme.inc
@@ -33,7 +33,7 @@
     $row = array();
     $row[] = drupal_render($form['info'][$id]['name']);
     $row[] = drupal_render($form['info'][$id]['justification']);
-    $row[] = drupal_render($form['info'][$id]['has_calc']) . drupal_render($form['info'][$id]['calc']);
+    $row[] = drupal_render($form['info'][$id]['has_calc']) . drupal_render($form['info'][$id]['calc']) . drupal_render($form['info'][$id]['precision']);
     $row[] = drupal_render($form['columns'][$id]);
     $row[] = drupal_render($form['info'][$id]['separator']);
     if (!empty($form['info'][$id]['sortable'])) {
@@ -225,5 +225,5 @@
   }
   
   return;
-     
-}
\ No newline at end of file
+  
+}
Index: views_calc_table.inc
===================================================================
--- views_calc_table.inc
+++ views_calc_table.inc
@@ -68,7 +68,28 @@
         '#process' => array('views_process_dependency'),
         '#dependency' => array('edit-style-options-info-'. $safe .'-has-calc' => array(TRUE)),
         '#multiple' => TRUE,
+        '#prefix' => '<fieldset class="collapsible collapsed"><legend>'. t('Calculations : ') .'</legend>',
+        '#suffix' => '</fieldset>',
       );
+      $form['info'][$field]['precision'] = array(
+        '#type' => 'fieldset',
+        '#title' => t('Round result'),
+        '#description' => t('Number of decimals to display.<br \>Leave blank to get full display.'),
+        '#collapsible' => TRUE,
+        '#collapsed' => TRUE,        
+      );
+      foreach ($options as $funct => $name) {
+        if ($funct != 'COUNT') { // COUNT is always an integer, there's no use in rounding it.
+          $form['info'][$field]['precision'][$funct] = array(
+            '#type' => 'textfield',
+            '#description' => $name,
+            '#default_value' => isset($this->options['info'][$field]['precision'][$funct]) ? $this->options['info'][$field]['precision'][$funct] : '',
+            '#size' => 2,
+            '#maxlength' => 2,
+            '#element_validate' => array('_views_calc_digit_validate'),
+          );
+        }
+      }
     }
   }
 
@@ -167,9 +188,15 @@
     foreach ($this->view->field as $field) {
       $query_field = substr($field->field, 0, 3) == 'cid' ? $field->definition['calc'] : $field->table .'.'. $field->field;
       $query_alias = $field->field_alias;
+      $precision = $this->view->style_plugin->options['info'][$field->field]['precision'][$calc];
       if (in_array($field->field, $fields)) {
         // Calculated fields.
-        $this->view->query->add_field(NULL, "$calc($query_field)", $query_alias);
+        if ((isset($precision)) && (ctype_digit($precision))) {
+          $this->view->query->add_field(NULL, "ROUND($calc($query_field), $precision)", $query_alias);
+        }
+        else {
+          $this->view->query->add_field(NULL, "$calc($query_field)", $query_alias);
+        }
         $this->view->query->add_table($field->table, NULL, NULL, $field->table);
       }
       else {
@@ -206,10 +233,16 @@
     foreach ($this->view->field as $field) {
       $query_field = substr($field->field, 0, 3) == 'cid' ? $field->definition['calc'] : $field->table .'.'. $field->field;
       $query_alias = $field->field_alias;
+      $precision = $this->view->style_plugin->options['info'][$field->field]['precision'][$calc];
       $this->view->query->add_table($field->table, NULL, NULL, $field->table);
       if (!empty($fields) && in_array($field->field, $fields)) {
         // Calculated fields.
-        $this->view->query->add_field(NULL, "$calc($query_field)", $query_alias);
+        if ((isset($precision)) && (ctype_digit($precision))) {
+          $this->view->query->add_field(NULL, "ROUND($calc($query_field), $precision)", $query_alias);
+        }
+        else {
+          $this->view->query->add_field(NULL, "$calc($query_field)", $query_alias);
+        }
       }
       else {
         // Empty fields that have no calculations.
@@ -241,4 +274,4 @@
     }
     return $calc_fields;
   }
-}
\ No newline at end of file
+}