fix: remove paid_amount and modify query
diff --git a/erpnext/education/report/student_fee_collection/student_fee_collection.json b/erpnext/education/report/student_fee_collection/student_fee_collection.json
index 07fc27c..eb945cf 100644
--- a/erpnext/education/report/student_fee_collection/student_fee_collection.json
+++ b/erpnext/education/report/student_fee_collection/student_fee_collection.json
@@ -1,18 +1,18 @@
 {
  "add_total_row": 0, 
- "apply_user_permissions": 1, 
  "creation": "2016-06-22 02:58:41.024538", 
  "disabled": 0, 
  "docstatus": 0, 
  "doctype": "Report", 
  "idx": 3, 
  "is_standard": "Yes", 
- "modified": "2017-11-10 19:41:37.320224", 
+ "modified": "2018-12-17 16:46:46.176620", 
  "modified_by": "Administrator", 
  "module": "Education", 
  "name": "Student Fee Collection", 
  "owner": "Administrator", 
- "query": "SELECT\n student as \"Student:Link/Student:200\",\n student_name as \"Student Name::200\",\n sum(paid_amount) as \"Paid Amount:Currency:150\",\n sum(outstanding_amount) as \"Outstanding Amount:Currency:150\",\n sum(grand_total) as \"Grand Total:Currency:150\"\nFROM\n `tabFees` \nGROUP BY\n student", 
+ "prepared_report": 0, 
+ "query": "SELECT\n student as \"Student:Link/Student:200\",\n student_name as \"Student Name::200\",\n sum(grand_total) - sum(outstanding_amount) as \"Paid Amount:Currency:150\",\n sum(outstanding_amount) as \"Outstanding Amount:Currency:150\",\n sum(grand_total) as \"Grand Total:Currency:150\"\nFROM\n `tabFees` \nGROUP BY\n student", 
  "ref_doctype": "Fees", 
  "report_name": "Student Fee Collection", 
  "report_type": "Query Report",