Suppose I have bought Educomp shares at Rs. 550.

I want to sell these shares at Rs. 580 limit price.

But if the price is declining, what should I do? I don't want to make huge loss.

You can put a stop-loss sell order at a price below which you want to sell your shares.

If you don't want to make more than Rs.15 loss per share, you can put your stop-loss sell order at 535.00 and trigger price as 535.75.

If the price stays above Rs.535.75, this order won't get executed.

You need to put a normal limit sell order at Rs. 580 so if the price reaches 580, you can sell your shares. This order is different from the stop-loss order.