diff --git a/frontend/src/views/chat/component/charts/utils.ts b/frontend/src/views/chat/component/charts/utils.ts
new file mode 100644
index 0000000..2e1fa1f
--- /dev/null
+++ b/frontend/src/views/chat/component/charts/utils.ts
@@ -0,0 +1,41 @@
+import type { ChartAxis, ChartData } from '@/views/chat/component/BaseChart.ts'
+import { endsWith, filter, replace } from 'lodash-es'
+
+interface CheckedData {
+  isPercent: boolean
+  data: Array<ChartData>
+}
+
+export function checkIsPercent(valueAxis: ChartAxis, data: Array<ChartData>): CheckedData {
+  const result: CheckedData = {
+    isPercent: false,
+    data: [],
+  }
+
+  const notEmptyData = filter(
+    data,
+    (d) =>
+      d &&
+      d[valueAxis.value] !== null &&
+      d[valueAxis.value] !== undefined &&
+      d[valueAxis.value] !== 0 &&
+      d[valueAxis.value] !== '0'
+  )
+  if (notEmptyData.length > 0) {
+    const v = notEmptyData[0][valueAxis.value] + ''
+    if (endsWith(v.trim(), '%')) {
+      result.isPercent = true
+    }
+  }
+  for (let i = 0; i < data.length; i++) {
+    const v = data[i]
+    const _v = { ...v } as ChartData
+    if (result.isPercent) {
+      const formatValue = replace(v[valueAxis.value], '%', '')
+      _v[valueAxis.value] = Number(formatValue)
+    }
+    result.data.push(_v)
+  }
+
+  return result
+}