04.26.2017 1 BTC ~$1400
400 eon = 0.08 btc ~$112
1 eon = 0.0002 btc ~$0.28
bonus 10% 400+40
440 eon = 0.08 btc ~$112
1 eon = 0.0001818 btc ~$0.25
440*6.71 (Unsold Coins Multiplicator) ~2952 eon
1 eon ~$0.038
04.21.2018 1BTC ~$9000
1 eon ~0.00000425 btc ~$0.038
2952 eon ~$112
The minimum price of the token upon return of the invested money will cost 0.00000425 btc
Not sure I entirely agree with this, this is based on an assumption that you bought in USD and it has cancelled off the appreciation of BTC in the USD amount, this should be calculated in BTC as ICO was in BTC.
simple calculation in my opinion is
1 EON = 0.0002BTC
No need to add bonus as not everyone got bonus
including the multiplied of 6.71X
1 EON = 0.0002 BTC/6.71
1 EON = 0.0000298063 BTC
Using current BTC price to get the USD value ~$9,000
Current Value based on ICO BTC amount is = 0.0000298063 * $9,000 = $0.268
So EON at a minimum should be $0.268 based on current BTC value