Assuming you hold to expiration, my profits for a $0.50 are usually $0.08 – $0.12 depending on how how the money the spread is.
So for example a weekly put veriticle for XLE strike @ $64 would be worth $0.23. The $63.50 would be worth $0.16. The spread is worth $0.07 if held to expiration. Your max profit is $0.07 and your max lost is $0.43.
It is “strongly” advised by networks / “professionals” that holding till expiration is ill-advised. Should take at 50% profit. So following this…