SAN FRANCISCO (AP) — Still working to repair damage caused by his gaffe about women seeking pay raises, Microsoft CEO Satya Nadella has again apologized to employees and announced in a company-wide memo that all workers will receive expanded training on how to foster an inclusive culture.

Microsoft’s female employees in the United States earn 99.7 percent of what men earned in similar positions last year, Nadella said in a new memo to workers this week. He suggested that such slight variations are not unusual for “any particular group,” but he added that he wants to increase the numbers of women and minorities in the company’s workforce.