Added on existing spreadsheat to include the Supply Demand calculation and added multipliers for both Buy / Sell and the Supply Demand logic.

Multipliers will edit all columns prices etc. They are found on the Yellow Rows, in the red cells.
Hope this helps a few as it did me.

https://docs.google.com/spreadsheets/d/1G4PFs4e401kbT4-TO99WqmTB3oZhkbox9_HbsyKpteE/edit?usp=sharing