for one possible approach.
One approach is to calculate the annual discretionary budget [the annual net income for each job minus annual expenses] for each position.
Bank Teller:
- To calculate the annual discretionary budget, we must find annual net income and the annual expenses.
- To find annual expenses, we simply multiple the monthly expenses by 12.
- To determine the annual net income for the bank teller job, we need to find the gross income and subtract the amount of taxes paid.
- To find the amount of taxes paid, we need to multiply the gross income by the tax rate (10% = .10).
- To find the annual gross income, we need to determine how many total hours you work in a year. Then we can multiply that by your hourly wage.
- To find out how many hours you work in a year, we multiply the number of hours you work each day by the number of days you work per year.
We work backwards through the pathway to do our calculations:
Step 6: The number of hours worked in a year is:
[latex]\displaystyle\frac{8 \; \textrm{hrs.}}{\textrm{day}} \times 260 \;\textrm{days} = 2080 \;\textrm{hrs.}[/latex]
Step 5: Multiply by the hourly wage to determine your annual gross income:
[latex]2080 \;\textrm{hrs.}\times \$11 / \textrm{hr.} = \$22,\!880[/latex]
Step 4: Calculate your taxes:
[latex]$22,880\times0.10=$2288[/latex]
Step 3: Net income is found by subtracting your taxes from your gross income:
[latex]$22,880-$2288=$20,592[/latex] Your annual net income as a bank teller is $20,592.
Step 2: Ok, so now let’s figure out the yearly expenses. If monthly expenses are $1500, then each year you will pay:
[latex]12\times$1500=$18,000[/latex]
Step 1: Finally, after the bills are paid, you can do what we want to with the remainder. This is our discretionary budget.
[latex]\$20,\!592 - \$18,\!000 = \$2592[/latex]
The annual discretionary budget for the Bank Teller position is $2592.
Next, let’s see what kind of discretionary budget you will have if you take the new job.
Assistant Manager:
- To calculate the annual discretionary budget, we must find annual net income and the annual expenses.
- To find annual expenses, we simply multiple the monthly expenses by 12.
- To determine the annual net income for the bank teller job, we need to find the gross income and subtract the amount of taxes paid.
- To find the amount of taxes paid for this job, we need to multiply the amount of gross income OVER $25000 (i.e.: $32000-$25000 = $7000) by the tax rate (15% = .15) and add that to $2500.
Note that since you are given the annual gross income (salary) for this position, our pathway stops here.
Step 4: This time, to find the amount of taxes paid (since you would be in a higher tax bracket), you will pay $2500 plus 15% of the difference between the salary and $25,000.
[latex]$2500+($7000\times0.15)=$3550[/latex]
Step 3: The annual net income for the assistant manager position would be:
[latex]$32,000-$3550=$28,450[/latex]
Step 2: It’s a higher net income than you are currently making, but how will it stack up against the higher cost-of-living expenses in the city? Let’s find the annual expenses:
[latex]12\times$2000=$24,000[/latex]
Step 1: Finally, your new discretionary budget would be:
[latex]$28,450-$24,000=$4450[/latex]
That’s definitely an improvement over $2592! Maybe it’s time to move to the big city and start advancing your career. However, since it’s not that much more, you probably shouldn’t go out and buy a brand new car. Just wait until you get your first promotion to full manager.