Question

A line graph shows the monthly sales (in units) of a product in 2013. January: 200, February: 250, March: 300, April: 280, May: 320, what is the percentage increase in sales from January to March?

• A. 40%
• B. 50%
• C. 60%
• D. 75%
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Hint:

For percentage increase, use the formula: $\left(\frac{\text{New} - \text{Old}}{\text{Old}}\right) \times 100$, and verify by applying the percentage to the initial value.

Answer 1

The Correct Option is B

- Step 1: Identify sales values. January: 200 units, March: 300 units.
- Step 2: Calculate absolute increase. Increase = $300 - 200 = 100$ units.
- Step 3: Calculate percentage increase. Formula: $\left(\frac{\text{Increase}}{\text{Initial}}\right) \times 100 = \left(\frac{100}{200}\right) \times 100 = 50%$.
- Step 4: Verify with options. 50% matches option (2).
- Step 5: Cross-check. $0.5 \times 200 = 100$, so $200 + 100 = 300$, which is March’s sales.
- Step 6: Final conclusion. Option (2) 50% is the correct answer.
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