Answer:
In the case Christie has a financial goal, it is a good practice to check her budget every month since this will allow her to confirm if her plan is working or if there are points of improvement. In the case changes have to be made, they can be made on time and not at a later stage where it could lead to other problems. Possibly Christie has been making changes to her budget because she is adjusting it the best way possible so she can make sure she will reach her goal.