EV $($with campaign$)=(0*(-250))+(0\mathrm{.}50*650)+(0\mathrm{.}40*800)$

EV $($with campaign$)=0+325+320$

EV $($with campaign$)=$ $$645,000$

The expected value with the campaign is higher than without it$,$ so it is a good investment.

Decision Recommendation with Campaign: Medium