Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

Problem 1128. Simple return on investment

Created by Mehmet OZC

Assume you have some money and want to invest all your money to stock market. You randomly select a stock and invest all your money to that stock at time t. After n days you sell all your stocks from t+n price. What is your return in percent? Round results to two decimal places.

Take as an example, the closing prices of stock X;

 closing_prices = [721;702;703;698;692;705;714;729;735;750];
 return = (price(t+n)-price(t))/price(t) = (750-721)/721 = 4.02%

It is also assumed that you operate with closing prices!

Tags

Problem Group

Solution Statistics

48 correct solutions 42 incorrect solutions
Last solution submitted on Sep 07, 2014