diff --git a/src/ui/Vipps.vue b/src/ui/Vipps.vue
index 0ec66b6..0edc034 100644
--- a/src/ui/Vipps.vue
+++ b/src/ui/Vipps.vue
@@ -3,7 +3,7 @@
       <img src="/public/assets/images/vipps-logo.svg" class="vipps-logo" />
       <span>
         kr.
-        <span class="big-money">{{ amount * 10 }},- (10,- pr. lodd)</span>
+        <span class="big-money">{{ price * 10 }},- (10,- pr. lodd)</span>
       </span>
       <img src="/public/assets/images/vipps-qr.png" class="qr-logo" />
       <span class="phone-number">977 40 427</span>
@@ -15,11 +15,19 @@
 <script>
 export default {
   props: {
-    amount: Number
+    amount: {
+      type: Number,
+      default: 10
+    }
+  },
+  computed: {
+    price: function() {
+      return this.amount * 100
+    }
   },
   methods: {
     openVipps: function() {
-      window.location.assign('https://qr.vipps.no/28/2/01/031/4797740427?v=1&m=Vinlotteri🍾&a=' + 100 * this.amount)
+      window.location.assign('https://qr.vipps.no/28/2/01/031/4797740427?v=1&m=Vinlotteri🍾&a=' + this.price)
     }
   }
 }