Answer:
Manero Company
In comparison to year 20X2, the increase in operating income of 20X3 was primarily caused by the effect of margin increase of
= $3,400.
Explanation:
a) Data and Calculations:
20X3 20X2 20X1
Sales $178,400 $162,500 $155,500
Cost of goods sold 115,000 102,500 100,000
Operating expenses 50,000 50,000 45,000
Operating income 13,400 10,000 10,500
Increase in operating income of 20X3 compared to 20X2 is $3,400 ($13,400 - $10,000)
This increase represents 34% increase in the margin of 20X3 when compared to 20X2. The increase resulted from increased sales revenue.