Answer:
Operating income = $220,320
Step-by-step explanation:
Operating income is the difference between revenue and operating cost.
ROI is the operating income expressed as a percentage of investment in assets.
ROI = operating income/investment
let operating income = y, investment in assets = $1,224,000
18% = y/1,224,000
y= 18%× 1,224,000 = 220320
Operating income = $220,320