房地产税计算公式

gistfile1.txt

按照2个人标准，最多四套房计算。

var basePersonCount = 2;
var basePersonArea  = 80;
var houses = [
    {area:160, money:30000},
    {area:90, money:30000},
];
var totalArea = (numOfHouse = 1)=>{
	var totalArea = 0;
	houses.map((i, index)=>{
        if(index < numOfHouse){
            totalArea += i.area
        }
	})
	return totalArea;
}
var totalTax = 0;
var avagePrice = (numOfHouse = 1)=>{
	var totalArea = 0;
	var totalMoney = 0;
	houses.map((i, index)=>{
		if(index < numOfHouse){
            totalArea += i.area
            totalMoney += i.area * i.money
		}
	})
	return (totalMoney / totalArea);
}

if(houses.length > 1 && totalArea(2) > basePersonArea*basePersonCount){
	totalTax += (totalArea(2) - basePersonArea * basePersonCount) * avagePrice(2) * 0.01
}
if(houses.length > 2){
	totalTax += (totalArea(3) - totalArea(2)) * houses[2].money * 0.03
}
if(houses.length > 3){
	totalTax += (totalArea(4) - totalArea(3)) * houses[3].money  * 0.1
}
console.log(totalTax)