A man purchases 8 pens for Rs.9 and sells 9 pens for Rs.8, how much profit or loss does he make?  Choose the correct choice:
A) 40.98% loss	B) 20.98% loss	C) 60.98% loss	D) 50.98% loss	E) 10.98% loss
Explanation:   81 ---- 17   100 ----- ? Ã¨ 20.98%loss   Answer:20.98% loss
<result>B</result>
A man purchases 8 pens for Rs.9 and sells 9 pens for Rs.8, how much profit or loss does he make?