Save Location
PC
<Steam Installation Directory>\Steam\steamapps\common\portal 2\portal2\SAVE
fdddddddgfh
MAC
/Users/your_user/Library/Application Support/Steam/SteamApps/common/portal 2/portal2/SAVE
PC
<Steam Installation Directory>\Steam\steamapps\common\portal 2\portal2\SAVE
fdddddddgfh
MAC
/Users/your_user/Library/Application Support/Steam/SteamApps/common/portal 2/portal2/SAVE