We have option price information of APPLE:

$\backslash$table$[[$Contract Name,Last Price,Bid,Ask$],[$AAPL$250218$C$00170000,170\mathrm{.}00,12\mathrm{.}26,13\mathrm{.}55]]$

$(1)$ If you buy this option contract, how much need to pay? Here its exercise price is $$170.(5$ points$)$

$(2)$ If a market price of APPLE is $$180,$ how much is an exercise value? $(5$ points$)$