I use Religare where my cost structure is as follows:
Brokerage = 0.02%
Service tax on Brokerage = 12.36%
Total Brokerage per side (A)= 0.0225%
Other duties, etc(B) = 0.0043%
TOTAL COST (EXCL STT) PER SIDE = (A+B) = 0.0268%
TOTAL COST (ESCL STT) FOR TWO SIDES = 0.0536%
STT is actually 0.017% on the average of Buy Value & Sell Value... (in short in one side)
SO TOTAL COSTS FOR BOTH SIDES = 0.0536% + 0.017% = ~ 0.071%
So, in one lot of nifty with price 4500, total cost = Rs. 160/-
If the price is 5000, then total cost = Rs 177.50
So, my cost is in proportion to the Nifty value at that time. T
Taking an average of Rs 170/- for 50 Nifty, 1 Nifty's cost = 3.4 points... in other words, my trade has to move atleast 4 points to cover costs.... beyond that is my actual net profit.....