Thread: Investment Calculator

I think I have a cluster of a mess here and was wondering if someone could help me in the right direction. I am trying to write a small program that will calculate the gain and/or loss of the sale of stock. The program will ask the user for the number of shares, the purchase price and the selling price. I am pretty sure that the errors is coming from my calculations in the program.

import java.util.Scanner;
 
	public class investmentCalculator {
	    public static void main (String[] args) {
 
	        Scanner input = new Scanner(System.in);
 
	    //User input for number of shares
	    System.out.print("Enter the number of shares: ");
	    double shares = input.nextDouble();
 
	    //User input for purchase price
	    System.out.print("Enter the purchase price: ");
	    double purchase = input.nextDouble();
 
	    //User input for selling price
	    System.out.print("Enter the selling price: ");
	    double selling = input.nextDouble();
 
	    //Compute
	    double originalCost = (shares * purchase);
	    double earned = (shares * selling);
	    double amountGainedOrLost = (earned - originalCost);
		double percentGain = amountGainedOrLost/(originalCost/1000);
 
 
	    int earning = 0;
		int original = 0;
 
 
	    System.out.println("Percent gain / loss: " + amountGainedOrLost + "%");
	    System.out.println("Amount gain / loss: $" + percentGain);
 
	  }
	}

From the looks of my output, I am thinking I have zero '0' problems.

Enter the number of shares: 5000
Enter the purchase price: 400.00
Enter the selling price: 450.00
Percent gain / loss: 250000.0%
Amount gain / loss: $125.0

Would someone please help me with this program. It seems like I have been working on it all day.

Yes, absolutely.

My output should look something like this...

Percent gain / loss: 250.0%
Amount  gain / loss: $125,000.00

But instead it looks like this:

Percent gain / loss: 250000.0%
Amount gain / loss: $125.0

--- Update ---

I have some issues of zero's not being in the right place. Clearly.