diff --git a/app/src/components/table-record.js b/app/src/components/table-record.js
index 7a7886e..142fee9 100644
--- a/app/src/components/table-record.js
+++ b/app/src/components/table-record.js
@@ -3,7 +3,9 @@
 Vue.component('table-record', {
     data: function () {
         return {
-            working_time: 0.0,
+            working_time: 0.0, // 演算処理をする前の勤務時間
+            below_time:0.0,
+            above_time: 0.0,
             is_hovering: false,
         };
     },
@@ -39,10 +41,10 @@
         </td>
         <td>{{ working_time }}</td>
         <td>{{ basic_info.cost_below_limit }}</td>
-        <td>{{ calc_below_time }}</td>
+        <td>{{ below_time }}</td>
         <td>{{ calc_below_cost }}</td>
         <td>{{ basic_info.cost_above_limit }}</td>
-        <td>{{ calc_above_time }}</td>
+        <td>{{ above_time }}</td>
         <td>{{ calc_above_cost }}</td>
         <td>{{ calc_invoice_price }}</td>
     </tr>
@@ -100,10 +102,26 @@
                     console.log('何も処理をしない');
                     break;
                 case "0":
-                    this.working_time = calc_working_time_by_select(this.working_time, 15);
+                    // 控除の算出
+                    if (this.calc_below_time > 0) {
+                        this.below_time = calc_working_time_by_select(this.calc_below_time, 15);
+                    }
+                    // 超過の算出
+                    if (this.calc_above_time > 0) {
+                        this.above_time = calc_working_time_by_select(this.calc_above_time, 15);
+                    }
+
                     break;
                 case "1":
-                    this.working_time = calc_working_time_by_select(this.working_time, 30);
+                    // 控除の算出
+                    if (this.calc_below_time > 0) {
+                        this.below_time = calc_working_time_by_select(this.calc_below_time, 30);
+                    }
+                    // 超過の算出
+                    if (this.calc_above_time > 0) {
+                        this.above_time = calc_working_time_by_select(this.calc_above_time, 30);
+                    }
+
                     break;
             };
         }