diff --git a/src/main/java/cn/palmte/work/bean/FormerBean.java b/src/main/java/cn/palmte/work/bean/FormerBean.java
index 94e732a..e405c65 100644
--- a/src/main/java/cn/palmte/work/bean/FormerBean.java
+++ b/src/main/java/cn/palmte/work/bean/FormerBean.java
@@ -118,7 +118,7 @@ public class FormerBean extends IncomeCostBean{
         if (incomeTotalTaxExclude.compareTo(BigDecimal.ZERO) == 0) {
             return BigDecimal.ZERO;
         }
-        return grossProfit.divide(incomeTotalTaxExclude).multiply(new BigDecimal(100));
+        return grossProfit.divide(incomeTotalTaxExclude, 4).multiply(new BigDecimal(100));
     }
 
     public void setGrossProfitProfitMargin(BigDecimal grossProfitProfitMargin) {
@@ -141,7 +141,7 @@ public class FormerBean extends IncomeCostBean{
         if (incomeTotalTaxExclude.compareTo(BigDecimal.ZERO) == 0) {
             return BigDecimal.ZERO;
         }
-        return contributionProfit.divide(incomeTotalTaxExclude).multiply(new BigDecimal(100));
+        return contributionProfit.divide(incomeTotalTaxExclude, 4).multiply(new BigDecimal(100));
 
     }
 
@@ -165,7 +165,7 @@ public class FormerBean extends IncomeCostBean{
         if (incomeTotalTaxExclude.compareTo(BigDecimal.ZERO) == 0) {
             return BigDecimal.ZERO;
         }
-        return netProfit.divide(incomeTotalTaxExclude).multiply(new BigDecimal(100));
+        return netProfit.divide(incomeTotalTaxExclude, 4).multiply(new BigDecimal(100));
     }
 
     public void setNetProfitProfitMargin(BigDecimal netProfitProfitMargin) {