Fixed master retention rate (sry off the top of my head thought it was 50%)

2 Silver for a snowflake (http://www.gw2spidy.com/item/38134)

30 Silver for one ecto

2 ore -> 1 ingot

2 ingots (4ore) -> 1 Filigree

2 ingots (4ore) -> 1 Setting

2 ingots (4ore) -> 1 Hook

6.6s for 12 ore

total mats needed to start:

12 ore, 1 ecto, 1 snowflake

38.6 silver

NOW, make one snowflake earing. Grats, you have exo, or rare snowflake earring.

Salvage with Mystic salvage kit or Master (80% upgrade, 25% rare material drop)

Get anywhere from (0-3 ectos per salvage)

80% of the time u retain the snowflake, and you remove 1 filigree, 1 ecto, and 1 snowflake.

58% of the time you get at least 1 ecto [1-(.75*.75*.75)]

with 6.25% of the time getting 3 ectos [.25*.25*.25]

For every salvage attempt to gain 0-3 ectos (with a rare) it cost

.6 silver per attempt with master salvage

8 ore (4.4 silver @55c per ore) per attempt 80% of the time, 12 ore, 1 ecto, 1 snowflake (38.6 silver) the other 20% of the time.

(avg value of each attempt when you do it an infinite amount of time: (38.6*.2+4.4*.8)

8.42 silver cost each salvage with 58% of the time getting you at least one ecto (30 silver)

(.42*-8.42)=(-3.5417.4)

Average profit statistically calculated (not including getting more than one ecto per salvage, still just one ecto or zero) 13.86 silver

That means (at least) +13.86 silver every time you salvage the earring. ALL materials and salvages included and accounted for.

Now the exotic

1 snowflake @ 2silver (http://www.gw2spidy.com/item/38135)

12 ore (http://www.gw2spidy.com/item/19701) @ 3 silver per = 36 silver

30 Silver for one ecto

.6 silver per attempt with master salvage

8 ore (24 silver @3s per ore) per attempt 80% of the time, 12 ore, 1 ecto, 1 snowflake (68.6 silver) the other 20% of the time.

(19+13.72)= 32.72 silver per salvage

100% chance for 30 silver (ecto)

68% chance for at least 2 ecto (60 silver)

SO 32.72 – 30silver, 2.72 silver

2.72 silver per salvage (guaranteed)

32% (at most) of the time u pay 2.72 silver per salvage

68% (at least) of the time u make 13.7 silver per salvage

so a weighted avg (mean) per salvage, (.68*13.7+.32*-2.72)= 9.316-0.87= 8.4 silver per salvage