1. **Problem:** Find the percent change from 70 to 56. 2. **Formula:** Percent change is calculated by $$\text{Percent Change} = \frac{\text{New Value} - \text{Original Value}}{\text{Original Value}} \times 100\%$$ 3. **Apply values:** $$\frac{56 - 70}{70} \times 100\% = \frac{-14}{70} \times 100\%$$ 4. **Simplify fraction:** $$\frac{\cancel{14} \times (-1)}{\cancel{14} \times 5} \times 100\% = \frac{-1}{5} \times 100\%$$ 5. **Calculate percent:** $$-\frac{1}{5} \times 100\% = -20\%$$ 6. **Interpretation:** The negative sign means a decrease. So, the percent change is a 20% decrease. **Final answer:** 20% decrease (Option A)