The table shows the percentage distribution of five mobile phone models (A to E) produced in 2021 and 2022. Total produced: 4,50,000 in 2021 and 5,20,000 in 2022.
| Model | 2021 (%) | 2022 (%) |
|---|---|---|
| A | 15 | 10 |
| B | 25 | 30 |
| C | 30 | 25 |
| D | 10 | 25 |
| E | 20 | 10 |
The number of Model-B mobile phones in the year 2022 is approximately what percentage more than the number of Model-D mobile phones in the year 2021?
The Model-B 2022 count exceeds the Model-D 2021 count by about 247%, so the answer is 247.
Model-B phones in 2022 are 30% of 5,20,000, which is 1,56,000.
Model-D phones in 2021 are 10% of 4,50,000, which is 45,000.
The excess is 1,56,000 minus 45,000, which is 1,11,000.
The percentage more is 1,11,000 divided by 45,000 times 100, which is about 247%.
Percentage more is always computed against the smaller reference value, here the 2021 Model-D figure.
The other options result from dividing by the wrong base or comparing the raw counts instead of the excess.
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