Adding characters after the cin object

[KStim]

How do you add a character after the user input?
For example i have an assignment involving loan calculations and my cin looks like this

cout << "Please insert your monthly interest :" << setw(17) <<""; 
cin >> MonthlyInterest;

When the monthly interest is set at 1% and the user inputs it the command window looks like this

Please insert your monthly interest: 1

I would LIKE to have it look as the following

Please insert your monthly interest: 1%

So how can i add a "%" to directly follow the number the user inputs?

[N36fSL3A]

If it is not a char* then you would do this:

//... Your cout statment....

cin << MonthlyInterest;

//Adding character
MonthlyInterest = MonthlyInterest + "%";

[KStim]

MonthlyInterest = MonthlyInterest + "%"; is giving me an error. the "%" segment is highlighted in red with a 'expression must have arithmetic or unscoped enum type

[kevinkjt2000]

I executed this code:

    double MonthlyInterest;
    cout << "Please insert your monthly interest :" << setw(17) << " "; 
    cin >> MonthlyInterest;
    cout << MonthlyInterest << "%" << endl;

And I had this in a file called input.txt:

56.7

I then ran the program with the input.txt being piped into the program and it worked as you described.

[N36fSL3A]

Yes, mine or kevin's examples work, use mine if you want the variable value to be changed, use kevin's if you want the variable outputed but not the value changed.