Question: Show the impact increase / decrease of the following changes in the premium of a short call option by the help of BS formula. -

Show the impact increase/decrease of the following changes in the premium of a short call option by the help of BS formula.
-Increase in spot price above the strike price
-Decrease in exercise price
-Increase in volatility
-Decrease in interest rate
-Decrease in time to expiration
while keeping other variables constant.

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