A few months ago, the management at Coral Trio Incorporated had devised an action plan to counter its increasing employee turnover. The action plan involved enriching the employees' jobs by giving them more responsibilities, increasing their salary by $10$ percent, and encouraging internal promotions. Currently, the management is evaluating the action plan to determine if the employee turnover has been reduced by at least $40$ percent. Identify the step of the PDCA cycle taken by Coral Trio Incorporated at present.