Resource Assignments

Haresh,
It’s so simple, if Add actual to remaining is tick then what ever the remaining is, actual will be added to remaining and at completion will be more than budget.
Formula: Budget = At completion = Remaining (i.e. 10 = 10 =1 0 no progress)
     Actual + Remaining = At completion (i.e. 5 + 10 = 15 with Progress)
If Subtract Actual from At Completion is selected then if Budget = At Completion = Remaining at no progress then when progress, At Completion – Actual = Remaining (i.e. 10 – 5 = 5) therefore At Completion = Budget