Nifty ITM strike

Hello Experts,

I am trying to take ATM-50 strike on Nifty using Round and Math Operation keyword. Confused between two options. (PFA)
Please help me out

Here Number (0) is used

Here Number (50) is used

Thank You

It should be like this:

1 Like

Instead, you can use ATM SPOT (-1) in the formula builder which is simple.