diff --git a/backend/src/main/java/io/dataease/service/chart/ChartViewService.java b/backend/src/main/java/io/dataease/service/chart/ChartViewService.java
index 740da7834a..f0a33fc4f8 100644
--- a/backend/src/main/java/io/dataease/service/chart/ChartViewService.java
+++ b/backend/src/main/java/io/dataease/service/chart/ChartViewService.java
@@ -997,9 +997,9 @@ public class ChartViewService {
                                     item[dataIndex] = null;
                                 } else {
                                     item[dataIndex] = new BigDecimal(cValue)
-                                            .divide(new BigDecimal(lastValue), 2, RoundingMode.HALF_UP)
+                                            .divide(new BigDecimal(lastValue), 8, RoundingMode.HALF_UP)
                                             .subtract(new BigDecimal(1))
-                                            .setScale(2, RoundingMode.HALF_UP)
+                                            .setScale(8, RoundingMode.HALF_UP)
                                             .toString();
                                 }
                             }
diff --git a/backend/src/main/java/io/dataease/service/chart/util/ChartDataBuild.java b/backend/src/main/java/io/dataease/service/chart/util/ChartDataBuild.java
index bff4282568..a58c9b0d27 100644
--- a/backend/src/main/java/io/dataease/service/chart/util/ChartDataBuild.java
+++ b/backend/src/main/java/io/dataease/service/chart/util/ChartDataBuild.java
@@ -902,7 +902,7 @@ public class ChartDataBuild {
                 if (chartViewFieldDTO.getDeType() == 0 || chartViewFieldDTO.getDeType() == 1 || chartViewFieldDTO.getDeType() == 5) {
                     d.put(fields.get(i).getDataeaseName(), StringUtils.isEmpty(ele[i]) ? "" : ele[i]);
                 } else if (chartViewFieldDTO.getDeType() == 2 || chartViewFieldDTO.getDeType() == 3) {
-                    d.put(fields.get(i).getDataeaseName(), StringUtils.isEmpty(ele[i]) ? null : new BigDecimal(ele[i]).setScale(2, RoundingMode.HALF_UP));
+                    d.put(fields.get(i).getDataeaseName(), StringUtils.isEmpty(ele[i]) ? null : new BigDecimal(ele[i]).setScale(8, RoundingMode.HALF_UP));
                 }
             }
             tableRow.add(d);