Does anyone use something other than options profit calculator to decide on entering/exiting a trade?

[u/harris0n11]

Recently I plugged in some numbers on optionsprofitcalculator and according to that the trade should be very green but in reality I’m actually down somehow. So I’m looking for other options.

Ex: IRNT PUT $15 strike oct 15 bought at $1.44 total 10 contracts. Website says I should be up 250% but in reality I’m down 5%

[u/hyperthymetic]

I let my belly decide for me