Your Adaptive Planning instance uses the default time stratum.

In Workday Adaptive Planning, the default time stratum is Month > Quarter > Year. To reference the same quarter from one year ago, the correct time modifier is [time=this.qtr-4], which shifts back four quarters (equivalent to one year) from the current quarter. The divf() function performs a floating-point division of the quarterly total by 3 to derive a monthly average. This is correct because a quarter contains 3 months, and dividing the quarterly amount by 3 yields the average monthly value for that quarter. The formula divf(ACCT.Example[time=this.qtr-4] , 3) retrieves the total value for the quarter that is four quarters prior and divides by 3 to return the average monthly value. Option B uses this.year-1, which references the full prior year rather than the same quarter. Option C's syntax [time=this.qtr, this.year-1] is not valid Adaptive Planning formula syntax. Option D uses a month range modifier that does not correctly target a full quarter. Reference: Workday Adaptive Planning — Time Modifiers, Quarter References, divf() Function, Formula Syntax.