用matlab解一个数学模型

代码：
clear
clc
price = input('输入价格（元）：\n \n');
if price < 200
discount = 0;
elseif price < 500
discount = price * 0.03;
elseif price < 1000
discount = price * 0.05;
elseif price < 2500
discount = price * 0.08;
elseif price < 5000
discount = price * 0.1;
elseif price >= 5000
discount = price * 0.14;
else
'Wrong!'
end
price_new = price - discount