Rahul had 200 mangoes. He sold 30 mangoes at 25% gain, 40 mangoes at 20% gain, 60 mangoes at 10% gain and 70 mangoes at 10% loss. His net gain/loss percentageis

A

7% gain

B

7% loss

C

7 $$\frac{1}{4}$$% gain

D

7 $$\frac{1}{4}$$% loss