新增 修改提现审核状态

utils/compute.go

@@ -0,0 +1,35 @@
+package utils
+
+// 一些计算
+
+// ComputeIndividualIncomeTax 计算个人所得税
+func ComputeIndividualIncomeTax(income float64) float64 {
+	if income <= 800 {
+		return 0
+	}
+
+	if income <= 4000 {
+		income = income - 800
+	}
+
+	// 实际纳税金额
+	income = income * 0.8
+
+	// 税率、速算扣除数
+	var taxRate, quickDeduction float64
+
+	if income <= 20000 {
+		taxRate = 0.2
+		quickDeduction = 0
+	} else if income <= 50000 {
+		taxRate = 0.3
+		quickDeduction = 2000
+	} else {
+		taxRate = 0.4
+		quickDeduction = 7000
+	}
+
+	incomeTax := income*taxRate - quickDeduction
+
+	return incomeTax
+}