API Revit change formula in shedule

[Anonymous]

Hello! 
Please help me with my problems.
1. How can I change the "calculated value" parameter in the formula in the shedule, is it possible using the Revit API?
2. How can I change the parameter type from "Number" to "Currency" using the Revit API, is this possible?
Thank you!

[jeremy_tammik]

1. Search this forum for "schedule formula".

2. You cannot modify the data type of an existing parameter. That would corrupt the model and all existing parameter values. One alternative is to create a new parameter of the desired type and populate all occurrences  of the old parameter with the new one.