User Configuration > Administrative Templates > Microsoft Project 2016 > Project Options > Calculation > Calculation options for 'Project1'
User
HKCU\software\policies\microsoft\office\16.0\ms project\options\calculation
Specifies that Project calculates actual costs automatically, based upon resource rates, per-use resource costs, and fixed task costs. If you enable this setting, Project will automatically calculate actual costs. If you disable or do not configure this setting, the user's default setting is used.