diff --git a/epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/service/evaluationindex/extract/toscreen/impl/PublicPartExtractServiceImpl.java b/epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/service/evaluationindex/extract/toscreen/impl/PublicPartExtractServiceImpl.java
index 7ccb83368f..2f1a6b2c52 100644
--- a/epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/service/evaluationindex/extract/toscreen/impl/PublicPartExtractServiceImpl.java
+++ b/epmet-module/data-statistical/data-statistical-server/src/main/java/com/epmet/service/evaluationindex/extract/toscreen/impl/PublicPartExtractServiceImpl.java
@@ -233,7 +233,7 @@ public class PublicPartExtractServiceImpl implements PublicPartExtractService {
                     bigDecimal = bigDecimal.add(new BigDecimal(vote.getVoteCount() / (memberCount * 1.0)));
                 }
                 if (votedByIssueCount.intValue() != 0) {
-                    entity.setAvgJoin(bigDecimal.divide(votedByIssueCount).multiply(new BigDecimal(NumConstant.ONE_HUNDRED)));
+                    entity.setAvgJoin(bigDecimal.divide(votedByIssueCount, 4, BigDecimal.ROUND_HALF_UP).multiply(new BigDecimal(NumConstant.ONE_HUNDRED)));
                 }
             }
         });