Macbook Air Poor Battery Life

Question

I have a mid-2012 Macbook air and I've noticed recently my battery life is horrible. I've read every single other thread about this issue but nothing really helped and even the most recent is from a couple of years ago. Obviously now it's 2015 and my macbook is running on Yosemite, so its not the battery issue that everyone seemed to have with Mavericks.
Just writing that small section I went from 73% to 68% and at the current 68% I only get an estimated 2 hours and 10 minutes remaining. I've also had only Safari running this whole time.
Option clicking the battery icon reveals that the condition is normal, as well as the power system report. It also has gone through only 441 cycles, no where near its 1000 cycle "limit" and its health is already down to 77%. While obviously the condition is normal and doesn't say I need to replace the battery I feel that I should, based off of everything else.

Answer 1

Have macbook air from mid 2012 - I installed Yosemite November 2014 and since then I'm having problem with my battery - it has been draining super fast - 4hrs battery life now compared to earlier 8hrs.
I reinstalled Yosemite, didn’t help and then made a clean reinstallation of Yosemite about  5 days ago and there is still the same drain issue.
Thank you in advance!
Here is the Etre Check Report:
Problem description:
The battery has been draining super fast - 4hrs battery life now compared to earlier 8hrs.
EtreCheck version: 2.2 (132)
Report generated 5/2/15, 8:02 PM
Download EtreCheck from http://etresoft.com/etrecheck
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Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
    MacBook Air (13-inch, Mid 2012) (Technical Specifications)
    MacBook Air - model: MacBookAir5,2
    1 1.8 GHz Intel Core i5 CPU: 2-core
    8 GB RAM Not upgradeable
        BANK 0/DIMM0
            4 GB DDR3 1600 MHz ok
        BANK 1/DIMM0
            4 GB DDR3 1600 MHz ok
    Bluetooth: Good - Handoff/Airdrop2 supported
    Wireless:  en0: 802.11 a/b/g/n
    Battery: Health = Normal - Cycle count = 341 - SN = D8622840AXXDKRNAA
Video Information: ℹ️
    Intel HD Graphics 4000
        Color LCD 1440 x 900
System Software: ℹ️
    OS X 10.10.3 (14D136) - Time since boot: 10:53:27
Disk Information: ℹ️
    APPLE SSD TS128E disk0 : (121.33 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Recovery HD (disk0s3) <not mounted>  [Recovery]: 650 MB
        Macintosh HD (disk1) / : 120.11 GB (105.35 GB free)
            Encrypted AES-XTS Unlocked
            Core Storage: disk0s2 120.47 GB Online
USB Information: ℹ️
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Inc. Apple Internal Keyboard / Trackpad
    Apple Internal Memory Card Reader
    Apple Inc. BRCM20702 Hub
        Apple Inc. Bluetooth USB Host Controller
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Mac App Store and identified developers
Problem System Launch Daemons: ℹ️
    [failed]    com.apple.mtrecorder.plist
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [failed]    com.apple.spirecorder.plist
User Login Items: ℹ️
    iTunesHelper    Application  (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Internet Plug-ins: ℹ️
    FlashPlayer-10.6: Version: 17.0.0.169 - SDK 10.6 [Click for support]
    Flash Player: Version: 17.0.0.169 - SDK 10.6 [Click for support]
    QuickTime Plugin: Version: 7.7.3
    Default Browser: Version: 600 - SDK 10.10
3rd Party Preference Panes: ℹ️
    Flash Player  [Click for support]
Time Machine: ℹ️
    Time Machine not configured!
Top Processes by CPU: ℹ️
         6%    WindowServer
         4%    fontd
         3%    hidd
         1%    configd
         1%    powerd
Top Processes by Memory: ℹ️
    519 MB    kernel_task
    156 MB    com.apple.WebKit.WebContent
    66 MB    Safari
    57 MB    mdworker(7)
    57 MB    Pages
Virtual Memory Information: ℹ️
    5.28 GB    Free RAM
    2.72 GB    Used RAM
    72 MB    Swap Used