You buy a stock and a put on the stock. You also write a call. The call and the put have the same expiration.

The stock price is $101.$ The put has a strike of $109$ and price $6.$ The call has a strike price of $85$ and price $4.$

Then the lowest profit on the option expiration date is

$($enter a negative number for a loss. For example, a profit of $-1\mathrm{.}00$ means a loss of $1\mathrm{.}00.$ Keep $2$ decimal places$)$