User blog comment:Dragonjet/KC3改/@comment-26366074-20151225104118/@comment-1820055-20151225110228

As of the latest formula on the Aerial Combat page

$$\text {Fighter Power} = \sum^\text{All slots} \text{Floor(} \sqrt{\text{Number planes in slot}} \times \text {Plane anti-air stat} + \text{Aircraft Proficiency Bonus} \text{)}$$

means, even if number of planes in slot is 0, it is only multiplied with the AA, and since PEMDAS addition goes after that, the 48~50 should have been the proficiency bonus, which was added after the multiplication.

I know it's counter-intuitive, but I'd like to conform with wikia info.

if there's something wrong with my math however, like I have misunderstood PEMDAS, anyone please do notify me. I know I'm getting rusty.