They represent 16.28% of the entire 43-member ministerial list; or 15.91% if you add Buhari as the Petroleum minister.
The following are the names of the seven female ministers (as they appear in the photograph) and their portfolios:
Minister of Humanitarian Affairs and Disaster Management, Hajia Sadiya Umar-Farouk.
Minister of State for Industry, Trade and Investment, Hajiya Maryam Katagun.
Minister of State for Transport, Senator Gbemisola Saraki.
Minister of State for Environment, Sharon Ikeazu.
Minister of Finance, Budget and National Planning, Hajiya Zainab Ahmed.
Minister of Women Affairs and Social Development, Dame Pauline Tallen.
Minister of State for FCT, Rahmatu Tijjani.