Defining Efficiency: A Closer Look at Excel Spreadsheet Definition - Free Printable

To solve this problem, we need to fill in the blank cells in the spreadsheet with appropriate formulas and functions to calculate:

1. Percent of Total (Column B)
2. Monthly Spend (Column C)
3. Percent Change (Column F)
4. Totals section (Rows 13–16) for:
- Number of Categories
- Average Spend
- Min Spend
- Max Spend

We'll go step-by-step.

---

🔧 Step 1: Understand the Data

- Annual Spend is given in Column D
- LY Spend (Last Year's Spend) is in Column E
- We’ll use these to compute other values.

---

✔ Step 2: Fill in Formulas

#### 🟨 Column B: Percent of Total
This is the percentage each category contributes to the total annual spend.

> Formula:
> `=D3 / SUM(D$3:D$11)`
> (Use absolute reference for the sum range so it doesn’t change when copied down)

So for B3, enter:
```excel
=D3/SUM($D$3:$D$11)
```
Then copy down from B3 to B11.

> ⚠️ Format as Percentage (e.g., 25%).

---

#### 🟨 Column C: Monthly Spend
Convert annual spend to monthly.

> Formula:
> `=D3 / 12`

For C3, enter:
```excel
=D3/12
```
Copy down to C11.

---

#### 🟨 Column F: Percent Change
Calculate how much each category changed compared to last year.

> Formula:
> `=(D3 - E3) / E3`
> This gives percent change: `(New - Old) / Old`

For F3, enter:
```excel
=(D3 - E3)/E3
```
Format as Percentage.

> ⚠️ Note: If E3 is zero, you might get a divide-by-zero error. But here all LY values are non-zero.

Copy down to F11.

---

#### 🟨 Row 12: Total Annual Spend
Sum of all annual spends.

In D12, enter:
```excel
=SUM(D3:D11)
```

In E12, enter:
```excel
=SUM(E3:E11)
```

> Optional: You can also add F12 for total percent change (but not required unless specified).

---

#### 🟨 Summary Section (Rows 13–16)

These are based on Annual Spend (Column D).

##### B13: Number of Categories
Count how many categories there are (rows 3 to 11).

In D13:
```excel
=COUNT(D3:D11)
```
Or just:
```excel
=9
```
But better to use formula in case rows change.

---

##### B14: Average Spend
Average of annual spends.

In D14:
```excel
=AVERAGE(D3:D11)
```

---

##### B15: Min Spend
Minimum annual spend.

In D15:
```excel
=MIN(D3:D11)
```

---

##### B16: Max Spend
Maximum annual spend.

In D16:
```excel
=MAX(D3:D11)
```

---

✔ Final Summary of Formulas

| Cell | Formula |
|------|--------|
| B3:B11 | `=D3/SUM($D$3:$D$11)` |
| C3:C11 | `=D3/12` |
| F3:F11 | `=(D3-E3)/E3` |
| D12 | `=SUM(D3:D11)` |
| E12 | `=SUM(E3:E11)` |
| D13 | `=COUNT(D3:D11)` |
| D14 | `=AVERAGE(D3:D11)` |
| D15 | `=MIN(D3:D11)` |
| D16 | `=MAX(D3:D11)` |

---

💡 Example Calculations (for verification):

Let’s check Household Utilities (Row 3):
- Annual Spend: $3,000
- LY Spend: $3,000
- Percent Change: `(3000 - 3000)/3000 = 0%` → 0%

Food:
- Annual: $2,500
- LY: $2,250
- Change: `(2500 - 2250)/2250 = 250/2250 ≈ 11.11%`

Vacation:
- Annual: $1,500
- LY: $2,000
- Change: `(1500 - 2000)/2000 = -500/2000 = -25%`

---

📌 Final Output (Expected Results)

After applying formulas:

| Category | % of Total | Monthly Spend | Annual Spend | LY Spend | % Change |
|------------------|------------|---------------|--------------|----------|----------|
| Household Utilities | 20.7% | $250 | $3,000 | $3,000 | 0.0% |
| Food | 17.2% | $208.33 | $2,500 | $2,250 | 11.1% |
| Gasoline | 10.3% | $125 | $1,500 | $1,200 | 25.0% |
| Clothes | 8.2% | $100 | $1,200 | $1,000 | 20.0% |
| Insurance | 10.3% | $125 | $1,500 | $1,500 | 0.0% |
| Taxes | 24.1% | $291.67 | $3,500 | $3,500 | 0.0% |
| Entertainment | 13.8% | $166.67 | $2,000 | $2,250 | -11.1% |
| Vacation | 10.3% | $125 | $1,500 | $2,000 | -25.0% |
| Miscellaneous | 8.6% | $104.17 | $1,250 | $1,558 | -19.8% |
| Totals | 100% | | $14,500 | $15,808 | |

> Total Annual Spend: $14,500
> Total LY Spend: $15,808
> Number of Categories: 9
> Average Spend: $1,611.11
> Min Spend: $1,200
> Max Spend: $3,500

---

✔ Conclusion

You now have a fully functional expense plan with dynamic calculations. The formulas will update automatically if any numbers change.

Let me know if you'd like this exported as an Excel file or formatted for printing!