diff --git a/src/components/Chart/RateChart.vue b/src/components/Chart/RateChart.vue
index 6e3699d..adbd421 100644
--- a/src/components/Chart/RateChart.vue
+++ b/src/components/Chart/RateChart.vue
@@ -38,7 +38,10 @@ const rate = computed(() => {
   //   .toFixed(2)
   //   .toString();
   // return [parseInt(_rate), _rate.split(".")[1]];
-  return [parseInt(props.rawData.nowYield), props.rawData.nowYield.split(".")[1]];
+  return [
+    parseInt(props.rawData.nowYield),
+    (props.rawData.nowYield + "").split(".")[1],
+  ];
 });
 
 const chart = ref(null);