| Ø | Select the Equations tool. |
Only the equation for new customers should be highlighted black, because this is the only variable in this view to which we added causes. Sales of the product are limited by the factory's ability to produce, so we will write an equation which returns the smaller value of word of mouth demand or factory capacity divided by units of product per customer (Capacity/widgets per person).
| Ø | Click on new customers and change the equation to the one below: |
| MIN(word of mouth demand, Capacity/widgets per person) |
You can select the MIN function from the list under the Functions tab, or just type it in as above.
