Order of Operations with Power Limitations?
I'm designing a super with Altered Time Rate 1 (Emergencies Only, 30%; Power Modifier, Super, 10%; Temporary Disadvantage, Night Blindness, 8 points; Unreliable 14, 10%).
The Temporary Disadvantage is worth 8 points rather than 10% (since Night Blindness is a 10 point disadvantage), since you can't save more than 80% of the value of a Temporary Disadvantage, and Altered Time Rate costs 100 points. But, the question then arises: do you...
Obviously I'd prefer the second option... but I thought I'd better check. 
Re: Order of Operations with Power Limitations?
I think the point is that the total discount cannot exceed the value of the disadvantage on its own. So #2 is correct. Another way to write it would be ATR (50%) [50] + Night Blindness (Only during ATR, 20%) [8].

Re: Order of Operations with Power Limitations?
The phrasing of that rule in terms of CP is a bit odd to me. I'd convert it to a percentage. (Since the base cost of ATR is 100 points, it's hard to tell the difference in this case.)
You'd expect to discount 30% + 10% + 10% + 10% = 60% of 100 points due to the limitations. That would be 10 points absolute for NB, which is limited to 8 points, so that's 8%, or a total of 58% limitations. Net cost is thus 42 points. If the base cost of the advantage were 150 points, then you'd have a 8 / 150 = 5.333% limitation... ultimately times 150 equals 8 points again. Arithmetically, it's the same as your second method of calculation. Whichever makes more sense to you. 
Re: Order of Operations with Power Limitations?
I would calculate the ability as normal without the limit on the Temp Disad, then add back to the final cost whatever amount is needed to comply with the cap.

Re: Order of Operations with Power Limitations?
I recalculate the value of the Temporary Disadvantage to "Whatever percentage limitation gives you 80% the discount of the full Disadvantage" in these situations. Avoids questions of Order of Operations issues entirely.
So in this case, TD: Night Blindness is a 8% limitation (what with ATR being nicely 100 points, the math is really easy : 8/100 = 0.08 or 8%). If you had some sort of 250 point advantage you were applying TD: Night Blindness to, it would then be a 3.2% limitation (8 points is 3.2% of 250 points). 
Re: Order of Operations with Power Limitations?
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Re: Order of Operations with Power Limitations?
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