Static

[Lapari]

May anyone please help me with this:
(I am new to c++)

Create a SavingsAccount class. Use a static data member to contain the annualInterestRate for each of the savers. Each member of the class contains a private data member savingsBalance indicating the amount the saver currently has on deposit. Provide a calculateMonthlyInterest member function that calculates the monthly interest by multiplying the balance by annualInterestRate divided by 12; this interest should be added to savingsBalance. Provide a static member function modifyInterestRate that sets the static annualInterestRate to a new value. Write a driver program to test class SavingsAccount. Instantiate two different savingsAccount objects, saver1 and saver2, with balances of $2000.00 and $3000.00, respectively. Set annualInterestRate to 3%, then calculate the monthly interest and print the new balances for each of the savers. Then set the annualInterestRate to 4% and calculate the next month's interest and print the new balances for each of the savers.

Here is what I got so far:

SavingAccount.h
************
 
#pragma once
 
class CSavingsAccount	
{
private:
	float savingsBalance;
public:
	CSavingsAccount( );
	~CSavingsAccount();
static float annualInterestRate;
	float calculateMonthlyInterest();
	static float ModifyInterestRate();
};
 
savingAccount.ccp
**************
#include "StdAfx.h"
#include ".\savingaccount.h"
 
CSavingsAccount::CSavingsAccount()//Constructor
{
 
}
CSavingsAccount::~CSavingsAccount()//Destructor
{
}
 
float CSavingsAccount::calculateMonthlyInterest()
{ 
 
return 0;
}
float CSavingsAccount::ModifyInterestRate()
{
 
return 0;
}
 
 
Main
****
#include "stdafx.h"
#include ".\savingaccount.h"//header file
 
using std::cout;
using std::endl;
 
int _tmain(int argc, _TCHAR* argv[])
{
 
CSavingsAccount saving1;
CSavingsAccount saving2;
 
cout<<"Balance for saving1 is: "
<<saving1.calculateMonthlyInterest()<<endl;
cout<<"Balance for saving2 is: "
<<saving2.calculateMonthlyInterest()<<endl;
 
cout<<" \n"<<endl;
 
cout<<"New balance for saving1 is: "
<<saving1.ModifyInterestRate()<<endl;
cout<<"New balance for saving2 is: "
<<saving2.ModifyInterestRate()<<endl;
 
 
	system("pause"); 
 
return 0;
}