In case of a MarginPLUS Sell Order, the SLTP for Stop Loss Buy order should be greater than the Last Traded Price (LTP) and in case of MarginPLUS Buy Order, the SLTP for Stop Loss Sell order should be less than the LTP. The calculate link is an optional tool and you can also enter the trigger price manually. On clicking the 'Calculate' link you can either opt 'Default 0.5% or Rs.1 (whichever is higher)' or 'Specify %' to arrive at your SLTP. System will calculate the SLTP based on the difference selected by you and this difference will be applied to the Fresh order price to arrive at the SLTP.
1. In case of fresh market order, fresh order price will be the Weighted Average Price (WAP) of best bid/offer price at the time this calculator is used. Let us see how the SLTP would be calculated with the help of below example:

Example: For a particular Stock XYZ say, 'WAP = Rs. 100/-' and you chose 'Default 0.5% or Rs.1 (whichever is higher)' option to calculate SLTP;

At the time of SLTP calculation :

1. If Fresh order is Buy then SLTP for the Cover Sell Order would be 100-(Max((100*0.5%),1)) = Rs. 99

2. If Fresh order is Sell then SLTP for the Cover Buy Order would be 100+(Max((100*0.5%),1)) = Rs. 101

In the above example say you opted to Specify % as 2% then,

At the time of SLTP calculation :

1. If Fresh order is Buy then SLTP for the Cover Sell Order would be (100-(100*2%)) = Rs. 98

2. If Fresh order is Sell then SLTP for the Cover Buy Order would be (100+(100*2%)) = Rs. 102

Note: It is preferable that you specify % as low as acceptable to you. This will provide maximum leverage benefit to you.