Hello dear aspirant,

Hope you’re doing well.

As you studied science (PCM) in class 12th, and now want to take admission in arts i.e B.A honours English, There will be a deduction of 2.5% from your best of four percentage.
this happens in university of delhi when you change your subject from science to arts.

Also, if you want to include the marks of physical education in your best of four aggregate, there will be again a deduction of 2.5% because Physical education is not included in List A or list B of subjects of university of delhi.

Hope this helps

Please ask if you have any more questions

All the best for your future!!