Simple Economic Question

Quick Question related to Economics Supply/demand.
I need someone to complete a table/formula in excel and also write a brief note on the theory to explain.
- Its just simple elasticity model, but I've forgotten all the steps... could use a graph...

Should be very simple/quick and I'm happy for you to hand-write and of the theory if that makes it easier.

Most important point is I need this done within 12 hours... no exceptions