diff -wr moodle-clean/moodle/admin/settings/grades.php moodle-live/admin/settings/grades.php
68a69
>                          GRADE_AGGREGATE_OUTOF            =>get_string('aggregateoutof', 'grades'),
diff -wr moodle-clean/moodle/grade/edit/tree/category_form.php moodle-live/grade/edit/tree/category_form.php
41a42
>                          GRADE_AGGREGATE_OUTOF            =>get_string('aggregateoutof', 'grades'),
diff -wr moodle-clean/moodle/lang/en_utf8/grades.php moodle-live/lang/en_utf8/grades.php
27a28
> $string['aggregateoutof'] = 'Proportion of work completed';
diff -wr moodle-clean/moodle/lib/grade/constants.php moodle-live/lib/grade/constants.php
44a45
> define('GRADE_AGGREGATE_OUTOF', 14);
diff -wr moodle-clean/moodle/lib/grade/grade_category.php moodle-live/lib/grade/grade_category.php
514a515,521
>     /// outof is a special aggregation types - it does not use relative values
>         if ($this->aggregation == GRADE_AGGREGATE_OUTOF) {
>             $this->outof_grades($grade, $oldfinalgrade, $items, $grade_values, $excluded);
>             return;
>         }
> 
> 
687a695,707
> 
> 
>     /**
>      * internal function for category grades summing
>      *
>      * @param object $grade
>      * @param int $userid
>      * @param float $oldfinalgrade
>      * @param array $items
>      * @param array $grade_values
>      * @param bool $excluded
>      * @return boolean (just plain return;)
>      */
741a762,824
>     
>     
>     /**
>      * internal function for category grades outof calculation
>      *
>      * @param object $grade
>      * @param int $userid
>      * @param float $oldfinalgrade
>      * @param array $items
>      * @param array $grade_values
>      * @param bool $excluded
>      * @return boolean (just plain return;)
>      */    
>         function outof_grades(&$grade, $oldfinalgrade, $items, $grade_values, $excluded) {
>         
>         $completed=0;
> 
>         foreach ($items as $item){
>             
>             // ungraded and exluded items are not used in aggregation
>             if (!array_key_exists($item->id,$grade_values) or is_null($grade_values[$item->id])) {
>                 unset($items[$item->id]);
>                 continue;
>             }    
>             
>             
>             //have they done this piece of work?
>             if ($item->gradetype == GRADE_TYPE_VALUE and $grade_values[$item->id]>0){
>                 $completed+=1;
>             }elseif ($item->gradetype == GRADE_TYPE_SCALE and $grade_values[$item->id]>1){
>                 $completed+=1;
>             }
>         }
>             
> 
>         $max = count($items);
> 
>         if ($this->grade_item->grademax != $max or $this->grade_item->grademin != 0 or $this->grade_item->gradetype != GRADE_TYPE_VALUE){
>             $this->grade_item->grademax = 1;
>             $this->grade_item->grademin = 0;
>             $this->grade_item->gradetype = GRADE_TYPE_VALUE;
>             $this->grade_item->update('aggregation');
>         }
> 
>         $this->apply_limit_rules($grade_values);
> 
>         if($max==0){
>             $outof=0;
>         }else{
>             $outof=$completed / $max;
>         }
>         
>          $grade->finalgrade = $outof;
> 
>         // update in db if changed
>         if (grade_floats_different($grade->finalgrade, $oldfinalgrade)) {
>             $grade->update('aggregation');
>         }
> 
>         return;
>     }
> 
>