A.K-Walid Ltd is a company providing healthcare services. Healthcare industry is expanding, and competition is very stiff. The primary revenue comes from the charges on the treatment of patients. Its major costs are salaries for medical and supporting staff, as well as other operational expenses of its medical centres. The following table presents K-Walid Ltd.'s operating profit margin for the last 3 years.

Years Operating profit margin 2019 52.4% 2018 51.3% 2017 53.8%