I've created two custom fields for opportunities that are "Revenue Per Order" and "Yearly Revenue." 

I'd like to create a workflow that says "If Revenue Per Order" does not equal "Amount", modify Amount to equal Revenue Per Order. Revenue per Order is required, while Amount is not. I believe I've gotten the criteria correct, but cannot seem to find the correct immediate actions.

Any help would be greatly appreciated.

I would like to create an If-Then rule where if the account owner = x then the account representative(custom field) equals x. If account representative equals x, then account manager equals a, b, or c

I would like to create an If-Then rule where if the account owner = x then the account representative(custom field) equals x. If account representative equals x, then account manager equals a, b, or c