PRICE = 220/0.88 × 1.1 - 220/0.88 = 275 - 250 = 25Detailed solution∶S.P = 220Loss percentage = 12%⇒ 12 = [(C.P - 220)/C.P] × 100⇒ 12C.P = 100C.P - 22000⇒ 88C.P = 22000⇒ C.P = 250To make a profit percentage of 10%, SP should be,⇒ 10 = [(S.P - 250)/250] × 100⇒ 100 = 4S.P - 1000⇒ S.P = 275∴ Required difference = 275 - 250 = Rs. 25