Hi, you've asked an unclear question not properly formatted.
First, you may wonder, what is a put option? In simple words, a put option is a type of contract that gives one party (the buyer of the "put") the right, but not the obligation, to sell the underlying stock at a "strike price" by the specified date in the future.
However, let's work on this clear assumption that the put option was bought for a strike price of $86, and the current price of the stock is $90, if the price of the stock drops to $79 on the expiration date and the option is exercised, then you would have netted in some gains which can be calculated by subtracting:
$86-$79= $7 net gain per share.
With this assumption, you may apply the same method to determine the solution to the completed question at your disposal.