ITR-3 - How to show loss in 65(i) - (iii) under under Part A - P & L section and sub section 65?

I am trying to show speculative income in ITR-3.
I have chosen 65(i) - (iii) under under Part A - P & L section and sub section 65 which is meant for those who do not wish to maintain books.
So my question is how to fill 65(i) - (iii) if I have loss instead of profit.
The 65(ii) is actually saying profit. So do I have to enter negative number here or leave it zero.
If it is zero then what to do with expenses in 65(iii)?
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