Formula - Date Help

Scenario

Orig Date (date type) = 1/1/2022
Moved to Date (date type) = 2/1/2022
Current Date (Formula - date type) = Blank

I need help writing out the formula for [Current Date] to reflect - IF [Moved to Date] Is Null then show [Orig Date] but If [Moved to Date] shows any date, reflect that date in [Current Date]. 

Hopefully this makes sense!
Cheers,

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Jeffery Torres
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