diff --git a/app/views/trainings/pay.html.erb b/app/views/trainings/pay.html.erb
index 17808d34..02290cd0 100644
--- a/app/views/trainings/pay.html.erb
+++ b/app/views/trainings/pay.html.erb
@@ -49,19 +49,23 @@
       <%= render :partial => 'upload_img', :locals => {:training => @training}  %>
     </div>
     <div class="infoBar mb10">
-      <p>费用明细</p>
-      <p class="break-word justify moneyDetail">大数据培训缴费</p>
-      <div style="text-align: right">
-        <p class="inline">
-          <input type="hidden" name="enlistN" value="<%= @training.training_payinfo.num %>"/>
-          <span class="fl mr10 font-12"><span id="enlistNum"><%= @training.training_payinfo.num %></span>人</span>
-          <span class="fl font-16">
-            <a href="javascript:void(0)" class="minusNum"><i class="iconfont icon-default sky_blue font-18"></i></a>
-            <span class="red mr5">￥<span id="enlistMoney"><%= @pay_fee * @training.training_payinfo.num %></span></span>
-            <a href="javascript:void(0)" class="plusNum"><i class="iconfont icon-roundaddfill blue font-18"></i></a>
+      <p>费用明细<span class="color-orange" id="percentPay">（3人及以上8折优惠)</span></p>
+      <p class="break-word justify moneyDetail">含会议注册费、场地费、培训费、教材资料费、餐费、专家差率费等</p>
+      <p class="clearfix">
+        <input type="hidden" name="enlistNum" value="1"/>
+        <input type="hidden" name="enlistMoney" value="3000"/>
+        <span class="fl red mr5 font-16">￥<span id="enlistM">3000</span></span>
+        <span class="lastPrice"></span>
+          <span class="fr font-16">
+            <a href="javascript:void(0)" class="minusNum" onclick="minusNum(this)">
+              <i class="iconfont icon-default sky_blue font-18"></i>
+            </a>
+            <span class="mr5 ml5 font-14"><span id="enlistN">1</span>人</span>
+            <a href="javascript:void(0)" class="plusNum" onclick="plusNum(this)">
+              <i class="iconfont icon-roundaddfill blue font-18"></i>
+            </a>
           </span>
-        </p>
-      </div>
+      </p>
     </div>
     <p style="height: 44px;"></p>
     <div class="bottomBtn <%= @training.training_payinfo.pay_type.to_i ==3 ? "" : "none" %>" id="offlinePaySubmitBtn">
@@ -227,35 +231,56 @@
         //上传头像
         InitPhoto();
 
-        //加减报名人数
-        $(".minusNum").click(function(){
-            var num=parseInt($("#enlistNum").html());
-            var money=parseFloat($("#enlistMoney").html()).toFixed(2);
-            if(num>1){
-                money=parseFloat(parseFloat(money)-parseFloat(money)/parseFloat(num)).toFixed(2);
-                num=num-1;
-                $("#enlistNum").html(num);
-                $("#enlistMoney").html(money);
-                if(num==1){
-                    $(".icon-default").removeClass("blue").addClass("sky_blue");
-                }
-                $("input[name='enlistN']").val(num);
+    })
+
+    //加减报名人数
+    function minusNum(item){
+        var num=parseInt($("#enlistN").html());
+        var money=parseFloat(3000).toFixed(2);
+        var percent=$("#percentPay");
+        if(num>1){
+            num=num-1;
+            if(num == 1){
+                $(".icon-default").removeClass("blue").addClass("sky_blue");
             }
-        })
-        $(".plusNum").click(function(){
-            var num=parseInt($("#enlistNum").html());
-            if(num==1){
-                $(".icon-default").removeClass("sky_blue").addClass("blue");
+            money=parseFloat(parseFloat(money) *num).toFixed(2);
+            if($(percent).length>0 && num>2){
+                $(".lastPrice").html("￥"+ money);
+                money = parseFloat(parseFloat(money) *0.8);
+            }else{
+                $(".lastPrice").html("");
             }
-            var money=parseFloat($("#enlistMoney").html()).toFixed(2);
-            money=parseFloat(parseFloat(money)+parseFloat(money)/parseFloat(num)).toFixed(2);
-            num=num+1;
+            $("#enlistN").html(num);
+            $("#enlistM").html(money);
+            $("#enlistNum").val(num);
+            $("#enlistMoney").val(money);
 
-            $("#enlistNum").html(num);
-            $("#enlistMoney").html(money);
-            $("input[name='enlistN']").val(num);
-        })
-    })
+        }
+    }
+    function plusNum(item){
+        var num=parseInt($("#enlistN").html());
+        var money=parseFloat(3000).toFixed(2);
+        var percent=$("#percentPay");
+
+        num=num+1;
+        if(num > 1){
+            $(".icon-default").removeClass("sky_blue").addClass("blue");
+        }
+        money=parseFloat(parseFloat(money) *num).toFixed(2);
+
+        if($(percent).length>0 && num>2){
+            $(".lastPrice").html("￥"+ money);
+            money = parseFloat(parseFloat(money) * 0.8).toFixed(2);
+        }else{
+            $(".lastPrice").html("");
+        }
+
+        $("#enlistN").html(num);
+        $("#enlistM").html(money);
+        $("#enlistNum").val(num);
+        $("#enlistMoney").val(money);
+        $("input[name='enlistNum']").val(num);
+    }
     //页面加载时，初始化发票类型
     function InitBill(userInfo){
         var index=2;
diff --git a/public/stylesheets/educoder/trainings.css b/public/stylesheets/educoder/trainings.css
index 18038b11..c6a2b1bf 100644
--- a/public/stylesheets/educoder/trainings.css
+++ b/public/stylesheets/educoder/trainings.css
@@ -20,12 +20,13 @@ a{text-decoration: none}
 .flex1{flex: 1}
 
 li{list-style-type: none;}
-
+.color-orange{color: #FC682D!important;}
 
 .mb5{margin-bottom: 5px}.mb10{margin-bottom: 10px!important;}
+
 .mt5{margin-top: 5px}
 .mr5{margin-right: 5px}
-.ml10{margin-left: 10px;}
+.ml5{margin-left: 5px;}.ml10{margin-left: 10px;}
 .mr10{margin-right: 10px;}
 
 .line20{line-height: 20px;}
@@ -240,6 +241,7 @@ input[type='text'].right_input{
 .billInput.nullVal{border:1px solid #DD1717;}
 .meetInfo{color: #4CACFF;}
 .enrollNum{margin:10px 15px;font-size: 1.4rem;}
+.lastPrice{color: #bfbfbf;font-size: 1.2px;text-decoration: line-through;margin-left: 5px;}
 /*上传图片*/
 .weui-uploader__bd {position: relative;width: 100px;height: 100px;}
 .weui-uploader__files {list-style: none;}