diff --git a/src/main/java/cn/lihongjie/coal/coalWashingDailyAnalysis/entity/CoalWashingDailyAnalysisEntity.java b/src/main/java/cn/lihongjie/coal/coalWashingDailyAnalysis/entity/CoalWashingDailyAnalysisEntity.java
index 5fe70d7a..7944f9b1 100644
--- a/src/main/java/cn/lihongjie/coal/coalWashingDailyAnalysis/entity/CoalWashingDailyAnalysisEntity.java
+++ b/src/main/java/cn/lihongjie/coal/coalWashingDailyAnalysis/entity/CoalWashingDailyAnalysisEntity.java
@@ -116,53 +116,49 @@ public class CoalWashingDailyAnalysisEntity extends OrgCommonEntity {
         for (int i = 0; i < inputItems.size(); i++) {
 
             CoalWashingDailyAnalysisItemVo item = inputItems.get(i);
-            if (i == 0) {
-                item.setFddAvgP1(item.getFddp1());
-            } else {
-                int nullCount = 0;
-                for (int j = 0; j < i; j++) {
-                    if (item.getFddp1() == null) {
-                        nullCount++;
-                    } else {
+            item.setFddAvgP1(0.0);
 
-                        item.setFddAvgP1(
-                                ObjectUtils.defaultIfNull(item.getFddp1(), 0.0)
-                                        + inputItems.get(j).getFddAvgP1());
-                    }
-                }
-                if (i - nullCount > 0) {
-
-                    item.setFddAvgP1(item.getFddAvgP1() / (i - nullCount));
+            int nullCount = 0;
+            for (int j = 0; j <= i; j++) {
+                if (inputItems.get(j).getFddp1() == null) {
+                    nullCount++;
                 } else {
-                    item.setFddAvgP1(null);
+
+                    item.setFddAvgP1(
+                            ObjectUtils.defaultIfNull(inputItems.get(j).getFddp1(), 0.0)
+                                    + item.getFddAvgP1());
                 }
             }
+            if (i - nullCount + 1 > 0) {
+
+                item.setFddAvgP1(item.getFddAvgP1() / (double) (i - nullCount + 1));
+            } else {
+                item.setFddAvgP1(null);
+            }
         }
 
         for (int i = 0; i < inputItems.size(); i++) {
 
             CoalWashingDailyAnalysisItemVo item = inputItems.get(i);
-            if (i == 0) {
-                item.setFddAvgP2(item.getFddp2());
-            } else {
-                int nullCount = 0;
-                for (int j = 0; j < i; j++) {
-                    if (item.getFddp2() == null) {
-                        nullCount++;
-                    } else {
+            item.setFddAvgP2(0.0);
 
-                        item.setFddAvgP2(
-                                ObjectUtils.defaultIfNull(item.getFddp2(), 0.0)
-                                        + inputItems.get(j).getFddAvgP2());
-                    }
-                }
-                if (i - nullCount > 0) {
-
-                    item.setFddAvgP2(item.getFddAvgP2() / (i - nullCount));
+            int nullCount = 0;
+            for (int j = 0; j <= i; j++) {
+                if (inputItems.get(j).getFddp2() == null) {
+                    nullCount++;
                 } else {
-                    item.setFddAvgP2(null);
+
+                    item.setFddAvgP2(
+                            ObjectUtils.defaultIfNull(inputItems.get(j).getFddp2(), 0.0)
+                                    + item.getFddAvgP2());
                 }
             }
+            if (i - nullCount + 1 > 0) {
+
+                item.setFddAvgP2(item.getFddAvgP2() / (double) (i - nullCount + 1));
+            } else {
+                item.setFddAvgP2(null);
+            }
         }
     }
 }