New Here - Need a Bit of Help

[ATXVulcan]

Hi all,
I'm working a lab for my first exam in my first programming class. The concept is this:

The Silly Savings and Loan Company just opened up with a cash balance of $1000, and a plan to get rich. Their plan to make money is simple. They will charge no fee for checks, and a 3% fee for all deposits. At the end of each day, they will count up their profits. One problem, though. They do not know much about computers (or even calculators) and they have hired you to write a simple program for them. They will run your program and enter deposits as positive numbers, and checks as negative numbers. All transactions will be recorded in the order they happen. When they run out of things to enter at the end of the day, they will enter a value of 0 to stop the program.

The program needs to add up both sets of numbers (deposits and checks) and figure out the amount of cash they should have at the end of the day. For every deposit, the 3% fee will be removed from the amount actually deposited, that amount will be added in to the profit they expect to make.

Once the data entry has been completed, the program will print out the total amount of checks written (as a positive number), the total amount of deposits received, the amount of cash they should have on hand, and the total profit earned that day.

Here are the transactions for their first day of operation:

Deposit $100.00
Check 500.00
Deposit 250.00
Deposit 25.00
Check $75.50
Deposit $27.50
Check $775.27
How to write your program

This program is a chance to use your problem-solving skills to do something fairly simple. You will need to use all of the C++ statements you have learned so far in the course:

While loop to process all the transactions
Input statement to process a single transaction
Decision statements to figure out what kind of transaction you have
Assignment statements to tally up the results

Here is what I have so far. I've gotten ahead of myself a little, but I don't know how to differentiate between deposits and checks, and then get those to add up and display correctly. Any help?

#include <math.h>
#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
//declare variables and constants
//input
float startingBalance;
//processing
float deposit = 0.0;
float check = 0.0;
float totalDeposits = 0.0;
float totalChecks = 0.0;
float transAmount = 0.0;
float profit = totalDeposits*0.03;
//output
float dailyTotal = startingBalance + totalDeposits + profit + totalChecks;

//enter starting balance (day 1 =$1000. This would be different every day.)
cout << "Enter Starting Balance: $";
cin >> startingBalance;
cout << "Enter Transaction Amount (use - for check, 0 to end day): $";
cin >> transAmount;
while (transAmount !=0)
{
dailyTotal = dailyTotal + transAmount;
cout << "Enter Next Amount: $";
cin >> transAmount;
}//end while
if (transAmount >0)
cin >> deposit;
if (transAmount <0)
cin >> check;
//end if
cout << "Total Deposit Amount: $" << totalDeposits << endl;
cout << "Total Checks: $" << totalChecks << endl;
cout << "Total Profit from Deposits: $" << profit << endl;
cout << "Cash On Hand: $" << dailyTotal;

system("PAUSE");
return EXIT_SUCCESS;
}