B. Below shows the sales and salary of 6 employees working at INIB Sheena Manufacturing
Corporation. In this corporation, all salespersons will be paid 2.5% commission on sales up to
₱30,000, 4% commission on sales from ₱30,000-₱60,000, and 5% on sales that exceed ₱60,000.
Some employees are paid monthly salaries in addition to commissions. Complete the table below
and answer the questions that follow.
SALESPERSON SALES SALARY GROSSPAY
Aiah ₱10,000 0
Colet ₱30,000 ₱2,000
Gwen ₱60,000 ₱3,000
Maloi ₱80,000 ₱500
Mikha ₱50,000 0
Stacey ₱90,000 ₱4,000
1. How much is the total sales and gross pay?
2. Who has the highest gross pay?
3. Who has the lowest gross pay?

To solve this problem, we need to determine the gross pay of each salesperson by calculating their commission based on the sales provided, adding any salary, and then completing the table.

### Step-by-step Commission Calculation:

1. **For Aiah (₱10,000 sales, no salary):**
   - Commission: \( 2.5\% \) on ₱10,000 = \( \frac{2.5}{100} \times 10,000 = \) ₱250
   - Gross Pay = ₱250 (since there's no salary)

2. **For Colet (₱30,000 sales, ₱2,000 salary):**
   - Commission: \( 2.5\% \) on ₱30,000 = \( \frac{2.5}{100} \times 30,000 = \) ₱750
   - Gross Pay = ₱750 + ₱2,000 = ₱2,750

3. **For Gwen (₱60,000 sales, ₱3,000 salary):**
   - Commission: 
     - \( 2.5\% \) on the first ₱30,000 = ₱750
     - \( 4\% \) on the next ₱30,000 = \( \frac{4}{100} \times 30,000 = ₱1,200 \)
   - Total Commission = ₱750 + ₱1,200 = ₱1,950
   - Gross Pay = ₱1,950 + ₱3,000 = ₱4,950

4. **For Maloi (₱80,000 sales, ₱500 salary):**
   - Commission: 
     - \( 2.5\% \) on the first ₱30,000 = ₱750
     - \( 4\% \) on the next ₱30,000 = ₱1,200
     - \( 5\% \) on the remaining ₱20,000 = \( \frac{5}{100} \times 20,000 = ₱1,000 \)
   - Total Commission = ₱750 + ₱1,200 + ₱1,000 = ₱2,950
   - Gross Pay = ₱2,950 + ₱500 = ₱3,450

5. **For Mikha (₱50,000 sales, no salary):**
   - Commission: 
     - \( 2.5\% \) on the first ₱30,000 = ₱750
     - \( 4\% \) on the next ₱20,000 = \( \frac{4}{100} \times 20,000 = ₱800 \)
   - Total Commission = ₱750 + ₱800 = ₱1,550
   - Gross Pay = ₱1,550 (no salary)

6. **For Stacey (₱90,000 sales, ₱4,000 salary):**
   - Commission:
     - \( 2.5\% \) on the first ₱30,000 = ₱750
     - \( 4\% \) on the next ₱30,000 = ₱1,200
     - \( 5\% \) on the remaining ₱30,000 = \( \frac{5}{100} \times 30,000 = ₱1,500 \)
   - Total Commission = ₱750 + ₱1,200 + ₱1,500 = ₱3,450
   - Gross Pay = ₱3,450 + ₱4,000 = ₱7,450

### Completed Table:

| SALESPERSON | SALES  | SALARY | GROSS PAY |
|-------------|--------|--------|-----------|
| Aiah        | ₱10,000 | ₱0     | ₱250      |
| Colet       | ₱30,000 | ₱2,000 | ₱2,750    |
| Gwen        | ₱60,000 | ₱3,000 | ₱4,950    |
| Maloi       | ₱80,000 | ₱500   | ₱3,450    |
| Mikha       | ₱50,000 | ₱0     | ₱1,550    |
| Stacey      | ₱90,000 | ₱4,000 | ₱7,450    |

### Answering the Questions:

1. **Total Sales and Gross Pay:**
   - Total Sales = ₱10,000 + ₱30,000 + ₱60,000 + ₱80,000 + ₱50,000 + ₱90,000 = ₱320,000
   - Total Gross Pay = ₱250 + ₱2,750 + ₱4,950 + ₱3,450 + ₱1,550 + ₱7,450 = ₱20,400

2. **Who has the highest gross pay?**
   - Stacey has the highest gross pay of ₱7,450.

3. **Who has the lowest gross pay?**
   - Aiah has the lowest gross pay of ₱250.

---

Would you like more details or further explanation on any part?

Here are 5 related questions for further exploration:

1. How much total commission did each salesperson earn?
2. What percentage of total sales did each salesperson contribute?
3. How much would the gross pay be if the salary were removed for all salespeople?
4. What would be the total gross pay if all employees had 5% commission on all sales?
5. How much commission would Aiah need to match Stacey's gross pay?

**Tip**: Understanding how commission scales with sales is key when optimizing compensation in sales-driven industries.

Below shows the sales and salary of 6 employees working at INIB Sheena Manufacturing Corporation. In this corporation, all salespersons will be paid 2.5% commission on sales up to ₱30,000, 4% commission on sales from ₱30,000-₱60,000, and 5% on sales that exceed ₱60,000. Some employees are paid monthly salaries in addition to commissions. Complete the table below and answer the questions that follow.

Learn how to calculate commission and gross pay for salespersons at INIB Sheena Manufacturing Corporation. This problem demonstrates how to apply percentage-based commission rates for different sales thresholds and includes employees with additional salary. Suitable for high school students (Grades 9-12).

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