Hands-On Exercise

Development Department Budget Trend Analysis

Prepared by Prof. Bob Bland & Bernard Boadu
University of North Texas — Public Administration
⏱ ~90 min  |  Intermediate  |  Excel / Google Sheets

Getting Started

This exercise uses the line-item budget for a city's Development Department (building permits & inspections). You will analyze expenditure and revenue trends over six fiscal years, then develop a proposed budget for FY8.

Department Policy Goal

This city has a policy goal that development fees will cover operating expenditures of this department. Your analysis will determine whether this goal is being met and whether it can be sustained.

Setup Steps

1Click Download Starter Spreadsheet. It has three tabs: Exp (Expenditures), Rev (Revenues), and Budget (summary worksheet).
2The Exp tab has 32 line items across 8 columns (FY1–FY6 actuals, FY7 adopted budget, FY7 revised estimate).
3You will add columns for percentage changes, averages, and a proposed FY8 budget.

Two Ways to Check Your Work

  • Quick Check: Enter specific computed values for instant feedback
  • Full Check: Upload your spreadsheet for comprehensive scoring

Progressive hints are available if you get stuck.

Compute Column Totals

Sum each fiscal year column in both the Expenditures and Revenues tabs. This gives you total departmental spending and revenue for each year.

Why Does This Matter?

Column totals let you see the overall trajectory of spending and revenue. Before diving into individual line items, the budget analyst needs the big picture: are total costs growing faster than revenues?

Formula
Total = SUM of all line items in each column
=SUM(C5:C36) for the Exp tab (adjust for Rev tab which has more rows)

Worked Example — Exp FY1

Total FY1 Expenditures: $3,561,200+$143,700+ ... = computed on load

What to Do in Excel

1In the Exp tab, go to row 37 (below the last line item). In column C, type =SUM(C5:C36). Label it "TOTAL EXPENDITURES" in column B.
2Copy the formula across to columns D through J to total all fiscal year columns.
3Switch to the Rev tab. Repeat for revenues: =SUM(C5:C38) in row 39. Copy across all columns.
Need Help?
Conceptual hint: Make sure you include all 32 line items in the Exp tab and all 34 line items in the Rev tab. The SUM range should cover exactly those rows.
Detail: In the Exp tab, data runs from row 5 to row 36 (32 items). In the Rev tab, data runs from row 5 to row 38 (34 items). Use AutoSum or type the formula manually.
Answers:
Total Exp FY1: loading...
Total Exp FY7 Revised: loading...
Total Rev FY1: loading...
Total Rev FY7 Revised: loading...
Check My Work — Task 1

Enter the totals you computed:

Compute Annual Percentage Changes

For each line item, compute the annual percentage changeThe proportional change from one year to the next, expressed as a percentage between consecutive fiscal years. This produces six columns of percentage changes.

Why Does This Matter?

Percentage changes reveal the rate of growth, which is more useful than dollar amounts for trend analysis. A $10,000 increase in a $100,000 line item (10%) is very different from a $10,000 increase in a $4,000,000 item (0.25%).

Formula
% Change = (New Year − Old Year) ÷ Old Year
=(D5-C5)/C5 for FY1→FY2 (first % change column)
Important: For the last column (FY6→FY7), use the Revised Estimate (column J), not the Adopted Budget. Formula: =(J5-H5)/H5

Worked Example — Salaries FY1→FY2

($3,774,900$3,561,200) ÷$3,561,200=6.00%

What to Do in Excel

1Move to cell K5 in the Exp tab. Type: =(D5-C5)/C5. Format as percentage. You should see ~6.00%.
2Copy K5 down to K37 (all line items plus total).
3Repeat for columns L through P (FY2→FY3 through FY5→FY6).
4For column Q (FY6→FY7), use the Revised Estimate: =(J5-H5)/H5. Copy down.
Need Help?
Conceptual hint: The formula is (New - Old) / Old. Make sure you divide by the earlier year. The result should be a decimal like 0.06 (which formats as 6%).
Detail: You can fill an entire block at once: enter K5, drag to K37, then select K5:K37 and drag the fill handle right to Q37. But remember to fix column Q to use the Revised Estimate!
Answers:
Salaries FY1→FY2: loading...
Salaries FY6→FY7 (revised): loading...
Check My Work — Task 2

Enter percentage changes (as decimals or percentages):

Average % Change & Proposed FY8 Budget

Compute the average percentage change across all six periods for each line item, then use a 1.0% growth factor to propose FY8 expenditures based on the Revised Estimate.

Why 1.0% Instead of the Average?

The average percent change may overstate needs since growth rates have been trending downward. A conservative 1.0% increase provides a more realistic baseline. In practice, analysts exercise judgment about each line item.

Formulas
Avg % Change = AVERAGE of 6 annual % change columns
=AVERAGE(K5:P5) — but remember you have columns K through Q (6 columns)
Proposed FY8 = Revised Estimate × 1.01
=(J5*1.01)

Worked Example — Salaries

Avg % Change:loading...
Proposed FY8:$4,332,300×1.01=loading...

What to Do in Excel

1In column R, type =AVERAGE(K5:Q5) and label it "Avg % Chg". Copy down for all line items.
2In column S, type =(J5*1.01) and label it "Proposed Budget FY8". Copy down and sum the column.
3Repeat both steps for the Revenue tab.
Need Help?
Conceptual hint: The AVERAGE function in Excel handles this automatically. Make sure your range covers all 6 percentage change columns (K through Q, not K through P which would only be 5).
Detail: The 1.01 factor means: original amount (1.00) plus 1% growth (0.01). Multiplying by 1.01 increases the Revised Estimate by exactly 1%.
Answers:
Total Proposed Exp FY8: loading...
Total Proposed Rev FY8: loading...
Check My Work — Task 3

Enter computed values:

Budget Worksheet & Balance Analysis

Transfer the totals for Adopted, Revised, and Proposed budgets to the Budget Worksheet tab. Then compute the Net (Revenue − Expenditure) for each column.

Why Does This Matter?

The budget worksheet is the executive summary that decision-makers see. It answers the fundamental question: will revenues cover expenditures? A negative Net means the department is running a deficit.

Link Formula
In Budget tab: =Exp!S37 (links to the total on the Exp tab)
This auto-updates when you change the Exp tab — a powerful Excel feature for budget management.

Revenue vs. Expenditure Trends

Revenue and expenditure trends for the Development Department.
Need Help?
Conceptual hint: The Budget Worksheet has three columns: Adopted FY7, Revised FY7, and Proposed FY8. Use link formulas (=Exp!cell and =Rev!cell) to pull totals from the other tabs.
Detail: Net = Total Revenue − Total Expenditure. If positive, the department has a surplus. If negative, it has a deficit. Check each column.
Answers (Budget Worksheet):
Proposed FY8 Net: loading...
Check My Work — Task 4

Enter the Net (Rev − Exp) for Proposed FY8:

Discussion Questions

Answer Key

Complete all four tasks to reveal, or: