Any
The ratio of operating income to net sales, usually expressed in percent. This is used to measure the level and rate of profitability. [1]
[1] Wikipedia. Retrieved May 21, 2021, from https://en.wikipedia.org/wiki/Operating_margin
[2] Retrieved May 21, 2021, from https://www.investopedia.com/terms/p/profitmargin.asp
[3] Corporate Finance Institute. Retrieved May 21, 2021, from https://corporatefinanceinstitute.com/resources/knowledge/accounting/operating-income/