Help me out with this EMV question please

With the introduction of a new technology in your project there is chance of saving 200000 in your project. However it can also lead to a 15% chance of employee attrition the impact of which can be 1200000 What is the EMV of project
 
a) 30000
b) 40000
c) 20000
d) -10000
 
Do I calculate 200000*85/100 - 1200000*15/100 
 
or 200000 -1200000*15/1000

You would calculate as

200000 * 85/100 - 1200000*15/100

 

Where is this test from? I would question the source.

didn't have my coffe yet.

As per the source it is 

200000 -1200000*15/1000

 

I am guessing because it says "there is a chance you could save 200000", so the EMV has already been calculated.?

there is chance of saving 200000...

Very nice. What is the probability? 100%?