diff --git a/app/controllers/managements_controller.rb b/app/controllers/managements_controller.rb
index d4e08240..8abb6c2b 100644
--- a/app/controllers/managements_controller.rb
+++ b/app/controllers/managements_controller.rb
@@ -4119,7 +4119,7 @@ end
       sheet1[count_row, 5] = show_shixun_mirror(shixun)
       sheet1[count_row, 6] = shixun.fork_identifier
       sheet1[count_row, 7] = shixun.challenges.count
-      sheet1[count_row, 7] = Setting.server_url + shixun_path(shixun)
+      sheet1[count_row, 8] = Setting.server_url + shixun_path(shixun)
       count_row += 1
     end
     book.write xls_report
diff --git a/app/models/school.rb b/app/models/school.rb
index fd925f9a..227858a4 100644
--- a/app/models/school.rb
+++ b/app/models/school.rb
@@ -22,6 +22,9 @@ class School < ActiveRecord::Base
   # banner图片信息
   has_many :school_images, :dependent => :destroy
 
+  # 报表信息
+  has_many :school_daily_reports
+
   # 视频附件
   acts_as_attachable
 
diff --git a/app/services/management/school_data_contrast_service.rb b/app/services/management/school_data_contrast_service.rb
index e6a39e9b..7637ec4a 100644
--- a/app/services/management/school_data_contrast_service.rb
+++ b/app/services/management/school_data_contrast_service.rb
@@ -17,15 +17,17 @@ class Management::SchoolDataContrastService
 
   def call
     validate_parameter!
-    reports = SchoolDailyReport.select(select_columns)
+    reports = School.joins(:school_daily_reports).select(select_columns)
 
     keyword = params[:keyword].try(:to_s).try(:strip)
     if keyword.present?
-      reports = reports.where("school_name LIKE :keyword OR school_id LIKE :keyword", keyword: "%#{keyword}%")
+      reports = reports.where("schools.name LIKE :keyword OR schools.id LIKE :keyword", keyword: "%#{keyword}%")
     end
 
-    count = reports.count('distinct(school_id)')
-    reports = reports.group(:school_id).limit(PAGE_SIZE).offset(offset)
+    count = reports.count('distinct(schools.id)')
+
+    sql = query_report_sql(reports.group('schools.id').to_sql)
+    reports = SchoolDailyReport.find_by_sql(sql)
 
     [count, reports]
   end
@@ -54,8 +56,13 @@ class Management::SchoolDataContrastService
   end
 
   def select_columns
-    "school_id, school_name,"\
+    "schools.id school_id, schools.name school_name,"\
     "(SUM(IF(date BETWEEN '#{format_date(params[:begin_date])}' AND '#{format_date(params[:end_date])}', #{contrast_column}, 0))) total,"\
     "(SUM(IF(date BETWEEN '#{format_date(params[:other_begin_date])}' AND '#{format_date(params[:other_end_date])}', #{contrast_column}, 0))) other_total"\
   end
+
+  def query_report_sql(from_sql)
+    "SELECT reports.*, (other_total - total) increase, (IF(other_total - total = 0, 0.0, round((other_total - total) / IF(total = 0, 1, total), 5))) percentage "\
+    "FROM (#{from_sql}) reports ORDER BY percentage #{sort_direction} LIMIT #{PAGE_SIZE} OFFSET #{offset}"
+  end
 end
diff --git a/app/services/management/school_data_grow_service.rb b/app/services/management/school_data_grow_service.rb
index 8923af2f..d9818d52 100644
--- a/app/services/management/school_data_grow_service.rb
+++ b/app/services/management/school_data_grow_service.rb
@@ -14,12 +14,12 @@ class Management::SchoolDataGrowService
   end
 
   def call
-    reports = query_reports.group(:school_id)
+    reports = query_reports.group('schools.id')
 
     count = reports.count.count
 
     reports = reports.select(
-      'school_id, school_name,'\
+      'schools.id school_id, schools.name school_name,'\
       'SUM(teacher_increase_count) teacher_increase_count,'\
       'SUM(student_increase_count) student_increase_count,'\
       'SUM(course_increase_count) course_increase_count,'\
@@ -28,7 +28,7 @@ class Management::SchoolDataGrowService
     )
 
     reports = custom_sort(reports, params[:sort_by], params[:sort_direction])
-    reports = reports.limit(PAGE_SIZE).offset(offset)
+    reports = reports.order('school_id asc').limit(PAGE_SIZE).offset(offset)
 
     [count, reports]
   end
@@ -47,11 +47,18 @@ class Management::SchoolDataGrowService
 
   private
   def query_reports
-    reports = SchoolDailyReport.where(date: query_date)
+    date = query_date
+    date_condition = if date.is_a?(Range)
+                       "sdr.date BETWEEN '#{date.min.strftime('%Y-%m-%d')}' AND '#{date.max.strftime('%Y-%m-%d')}'"
+                     else
+                       "sdr.date = '#{date.strftime('%Y-%m-%d')}'"
+                     end
+
+    reports = School.joins("LEFT JOIN school_daily_reports sdr ON sdr.school_id = schools.id AND #{date_condition}")
 
     keyword = params[:keyword].try(:to_s).try(:strip)
     if keyword.present?
-      reports = reports.where("school_name LIKE :keyword OR school_id LIKE :keyword", keyword: "%#{keyword}%")
+      reports = reports.where("schools.name LIKE :keyword OR schools.id LIKE :keyword", keyword: "%#{keyword}%")
     end
 
     reports
diff --git a/app/services/management/school_report_service.rb b/app/services/management/school_report_service.rb
index e9ee1bae..5f50c5ec 100644
--- a/app/services/management/school_report_service.rb
+++ b/app/services/management/school_report_service.rb
@@ -26,29 +26,16 @@ class Management::SchoolReportService
 
   private
   def select_columns_sql
-    <<-SQL
-    schools.id, schools.name,
-    (
-      SELECT COUNT(*) FROM user_extensions ue
-      WHERE ue.school_id = schools.id AND ue.identity = #{User::STUDENT}
-    ) student_count,
-    (
-      SELECT COUNT(*) FROM user_extensions ue
-      WHERE ue.school_id = schools.id AND ue.identity = #{User::TEACHER}
-    ) teacher_count,
-    (
-      SELECT COUNT(*) FROM homework_commons hc 
-      LEFT JOIN courses ON courses.id = hc.course_id 
-      WHERE courses.school_id = schools.id AND hc.homework_type = 4
-    ) homework_count,
-    (
-      SELECT COUNT(*) FROM homework_commons hc 
-      LEFT JOIN courses ON courses.id = hc.course_id 
-      WHERE courses.school_id = schools.id AND hc.homework_type IN (1,3)
-    ) other_homework_count,
-    (SELECT COUNT(*) FROM courses cs WHERE cs.school_id = schools.id) course_count ,
-    (SELECT MAX(cs.updated_at) FROM courses cs WHERE cs.school_id = schools.id) nearly_course_time ,
-    (SELECT COUNT(*) FROM courses acs WHERE acs.school_id = schools.id AND acs.is_end = false) active_course_count
-    SQL
+    "schools.id, schools.name,"\
+    "(SELECT COUNT(*) FROM user_extensions ue WHERE ue.school_id = schools.id AND ue.identity = #{User::STUDENT}) student_count,"\
+    "(SELECT COUNT(*) FROM user_extensions ue WHERE ue.school_id = schools.id AND ue.identity = #{User::TEACHER}) teacher_count,"\
+    "(SELECT COUNT(*) FROM homework_commons hc LEFT JOIN courses ON courses.id = hc.course_id "\
+      "WHERE courses.school_id = schools.id AND hc.homework_type = 4) homework_count,"\
+    "(SELECT COUNT(*) FROM homework_commons hc LEFT JOIN courses ON courses.id = hc.course_id "\
+      "WHERE courses.school_id = schools.id AND hc.homework_type IN (1,3)) other_homework_count,"\
+    "(SELECT COUNT(*) FROM courses cs WHERE cs.school_id = schools.id) course_count ,"\
+    "(SELECT MAX(ca.updated_at) FROM course_activities ca LEFT JOIN courses cs ON cs.id = ca.course_id "\
+      "WHERE cs.school_id = schools.id) nearly_course_time ,"\
+    "(SELECT COUNT(*) FROM courses acs WHERE acs.school_id = schools.id AND acs.is_end = false) active_course_count"
   end
 end
diff --git a/app/tasks/statistic_school_daily_report_task.rb b/app/tasks/statistic_school_daily_report_task.rb
index 3569351f..138db4d5 100644
--- a/app/tasks/statistic_school_daily_report_task.rb
+++ b/app/tasks/statistic_school_daily_report_task.rb
@@ -18,6 +18,8 @@ class StatisticSchoolDailyReportTask
       shixun_count = Shixun.joins(creator: :user_extensions)
                            .where('user_extensions.school_id = ?', school.id)
                            .where(created_at: yesterday).count
+      # 无有效数据时不记录
+      next if [teacher_count, student_count, course_count, shixun_count, active_user_count].all?(&:zero?)
 
       create_params = {
         school_id: school.id, school_name: school.name, teacher_increase_count: teacher_count,
diff --git a/app/views/managements/schools/_data_contrast_list.html.erb b/app/views/managements/schools/_data_contrast_list.html.erb
index 23893cb3..d77d4b70 100644
--- a/app/views/managements/schools/_data_contrast_list.html.erb
+++ b/app/views/managements/schools/_data_contrast_list.html.erb
@@ -24,7 +24,7 @@
     <th width="22%">时段一<br><%= "（#{params[:begin_date]}至#{params[:end_date]}）" %></th>
     <th width="22%">时段二<br><%= "（#{params[:other_begin_date]}至#{params[:other_end_date]}）" %></th>
     <th width="20%" colspan="2">
-      变化情况
+      <%= sort_tag('变化情况', name: 'percentage', path: school_data_contrast_managements_path) %>
       <br>（  新  增  数   | 新增百分比）
     </th>
   </tr>
diff --git a/app/views/managements/schools/_data_grow_list.html.erb b/app/views/managements/schools/_data_grow_list.html.erb
index 370a8e42..6d42c8b0 100644
--- a/app/views/managements/schools/_data_grow_list.html.erb
+++ b/app/views/managements/schools/_data_grow_list.html.erb
@@ -31,11 +31,11 @@
         <td><%= (@obj_pages.page - 1) * @obj_pages.per_page + index + 1 %></td>
         <td><%= report.school_id %></td>
         <td class="edu-txt-left"><%= report.school_name %></td>
-        <td><%= report.teacher_increase_count %></td>
-        <td><%= report.student_increase_count %></td>
-        <td><%= report.course_increase_count %></td>
-        <td><%= report.shixun_increase_count %></td>
-        <td><%= report.active_user_count %></td>
+        <td><%= report.teacher_increase_count.to_i %></td>
+        <td><%= report.student_increase_count.to_i %></td>
+        <td><%= report.course_increase_count.to_i %></td>
+        <td><%= report.shixun_increase_count.to_i %></td>
+        <td><%= report.active_user_count.to_i %></td>
       </tr>
     <% end %>
   </tbody>
diff --git a/app/views/student_work/shixun_work_report.html.erb b/app/views/student_work/shixun_work_report.html.erb
index 1b1fe228..e83cd3d7 100644
--- a/app/views/student_work/shixun_work_report.html.erb
+++ b/app/views/student_work/shixun_work_report.html.erb
@@ -81,7 +81,7 @@
           <td><%= user_query.blank? ? "--" : user_query.first[1] %></td>
           <td><%= game.try(:end_time).nil? ? "--" : format_time(game.end_time) %></td>
           <td><%= game.consumes_time %></td>
-          <td><%= game.status == 2 ? (game.final_score.to_i < 0 ? 0 : game.challenge.score.to_i) : 0 %> / <%= game.challenge.st == 1 ? game.challenge.choose_score : game.challenge.score %></td>
+          <td><%= game.status == 2 ? (game.final_score.to_i < 0 ? 0 : game.challenge.choose_score.to_i) : 0 %> / <%=  game.challenge.choose_score %></td>
         </tr>
     <% end %>
     </tbody>
diff --git a/lib/tasks/statistic_school_daily_report.rake b/lib/tasks/statistic_school_daily_report.rake
index 67604fff..9be09ad6 100644
--- a/lib/tasks/statistic_school_daily_report.rake
+++ b/lib/tasks/statistic_school_daily_report.rake
@@ -30,11 +30,14 @@ namespace :school_daily_report do
         reports = School.find_by_sql(sql)
 
         data = reports.map do |report|
+          # 无效数据不记录
+          next if %w(teacher_count student_count course_count shixun_count active_user_count).all? { |key| report[key].zero? }
+
           [
             report['id'], report['name'], report['teacher_count'], report['student_count'], report['course_count'],
             report['shixun_count'], report['active_user_count'], date_str, current_datetime, current_datetime
           ]
-        end
+        end.compact
         batch_create_school_daily_reports!(data)
       end
       custom_logger("Statistic complete! date: #{date_str}")
@@ -43,9 +46,27 @@ namespace :school_daily_report do
     end
   end
 
-  desc 'clear school daily report data'
-  task clear: :environment do
-    SchoolDailyReport.destroy_all
+  desc 'clear useless school daily report data'
+  task clear_useless_data: :environment do
+    condition = {
+      teacher_increase_count: 0, student_increase_count: 0, course_increase_count: 0,
+      shixun_increase_count: 0, active_user_count: 0
+    }
+    reports = SchoolDailyReport.where(condition)
+
+    # 因为数据量太大，直接删除全部的话mysql会报错(Lock wait timeout exceeded)
+    min_date = reports.minimum(:date).to_time
+    now_date = Time.zone.now
+
+    custom_logger("Useless data total: #{reports.count}")
+
+    while min_date < now_date
+      custom_logger("Delete record in date range: #{min_date.strftime('%Y-%m-%d')} .. #{(min_date + 1.months).strftime('%Y-%m-%d')}) ~")
+      reports.where(date: min_date..(min_date + 1.months)).delete_all
+
+      custom_logger("Delete Success!")
+      min_date += 1.months
+    end
   end
 
   def query_size