The profit P for a company is
P = 100xe−x/400,
where x is sales. Approximate, using differentials, the change and percent change in profit as sales increase from x = 115 to x = 120 units. (Round your answers to two decimal places.)

Question

The profit P for a company is 
P = 100xe−x/400,
where x is sales. Approximate, using differentials, the change and percent change in profit as sales increase from x = 115 to x = 120 units. (Round your answers to two decimal places.)

anonymous · Answer

I think I have it. I am going to check with my sister who teaches math really fast. :P

anonymous · Answer

Wait...what is e? I didnt see that.

anonymous · Answer

I don't have e. I was just given P=100xe^-x/400

anonymous · Answer

are you solving for e?

anonymous · Answer

I'm trying to find the percentage change.