diff --git a/src/main/resources/static/assets/js/project_budget.js b/src/main/resources/static/assets/js/project_budget.js
index e69de29..d67da98 100644
--- a/src/main/resources/static/assets/js/project_budget.js
+++ b/src/main/resources/static/assets/js/project_budget.js
@@ -0,0 +1,41 @@
+/**
+ * 更新
+ * 毛利=收入总计（不含税）-成本总计（不含税）-财务费用总计（不含税）
+ * 毛利率=毛利（不含税）/收入总计（不含税）
+ * 贡献利润=项目毛利（不含税）-公司管理费用总计（不含税）
+ * 贡献利润率=贡献利润（不含税）/收入总计（不含税）
+ */
+function updateProjectContributionProfitRate() {
+    //收入总计不含税
+    var incomeTotalTaxExclude = f2($("input[name='incomeTotalTaxExclude']").val());
+    //成本总计不含税
+    var costTotalTaxExclude = f2($("input[name='costTotalTaxExclude']").val());
+    //资金使用成本不含税
+    var costExpropriationTaxExclude = f2($("input[name='costExpropriationTaxExclude']").val());
+    //公司管理费用
+    var costCompanyManageTaxExclude = f2($("input[name='costCompanyManageTaxExclude']").val());
+
+    var projectGrossProfit = f2(incomeTotalTaxExclude-costTotalTaxExclude-costExpropriationTaxExclude);
+    var projectGrossProfitRate = rate(projectGrossProfit, incomeTotalTaxExclude);
+    var projectContributionProfit = f2(projectGrossProfit-costCompanyManageTaxExclude);
+    var projectContributionProfitRate = rate(projectContributionProfit, incomeTotalTaxExclude);
+
+    $("input[name='projectGrossProfit']").val(projectGrossProfit);
+    $("input[name='projectGrossProfitRate']").val(projectGrossProfitRate);
+    $("input[name='projectContributionProfit']").val(projectContributionProfit);
+    $("input[name='projectContributionProfitRate']").val(projectContributionProfitRate);
+}
+
+/**
+ * 计算利润率
+ * @param r1
+ * @param r2
+ * @returns {*}
+ */
+function rate(r1,r2) {
+    if(!r1 || !r2 || r1==0 || r2==0){
+        return 0;
+    }
+
+    return f2(r1*100/r2);
+}
\ No newline at end of file