Final answer:
The electronic division's margin is 18%.
Step-by-step explanation:
The electronic division's margin can be calculated using the formula:
Margin = (Operating Income / Revenues) * 100
Using the given figures:
Operating Income = $144,000 and Revenues
= $800,000
Therefore, the margin is:
Margin = (144,000 / 800,000) * 100
= 18%
So, the correct answer is 18%.