An investor forms a long butterfly spread using the three call options in the table below $($long C$1$ and C$3,$ short two C$2).$ What would be the profit of the portfolio when the stock price is $100?$ Please report the number with at most two digits after the decimal point without the dollar sign $($e$.$g$.,00\mathrm{.}00.$ You do not have to write the dollar in your solution$).$ The profit of the portfolio when the stock price is $100$ is: $\backslash (\backslash$$ $\backslash )$