1. **State the problem:** The PTA raised 16750 this year, which is 0% less than last year. We need to find how much was raised last year. 2. **Understand the percent change formula:** Percent change = $$\frac{\text{New Amount} - \text{Original Amount}}{\text{Original Amount}} \times 100$$ 3. **Apply the problem's information:** Percent change = 0%, New Amount = 16750, Original Amount = ? 4. **Set up the equation:** $$0 = \frac{16750 - \text{Original Amount}}{\text{Original Amount}} \times 100$$ 5. **Solve for Original Amount:** Divide both sides by 100: $$0 = \frac{16750 - \text{Original Amount}}{\text{Original Amount}}$$ Multiply both sides by Original Amount: $$0 = 16750 - \text{Original Amount}$$ Add Original Amount to both sides: $$\text{Original Amount} = 16750$$ 6. **Interpretation:** Since the percent change is 0%, the amount raised last year is the same as this year. **Final answer:** Last year, the PTA raised 16750.