using C++ program . please make sure to clarify the steps

Write a C++ program to solve the following problem. Proper documentation must be included in the source file. Problem: Negotiating a personal loan is not always straightforward. One form of loan is the discount installment loan, which works as follows. Suppose a loan has a face value of $1,000, the interest rate is 15%, and the duration is 18 months. The interest is computed by multiplying the face value of $1,000 by 0.15, yielding $150. That figure is then multiplied by the $225 as the total interest owed. That amount is immediately deducted from the face value, leaving the consumer with only $775. Repayment is made in equal monthly installments based on the face value. So the monthly loan payment will be $1,000 divided by 18, which is $55.56. This method of calculation may be alright if the client needs $775, but the calculation is a bit more complicated if the client needs $1,000. Write a program that will take two inputs: the amount the client needs to receive and the interest rate. The program should consider the duration of the loan being 24 months (i.e. a constant value), then calculate the face value required in order for the client to receive the amount needed. It should also calculate the monthly payment