Calculation of Rates in GetOorU function

[davidjtgrant]

I think we are missing "brackets" in calculation of the two rates.

Charisma/api/app/main.py

Line 102 in d6c1b7b

performanceRate = sumOfSevenDayAverage - sumOfPurchasePrice / sumOfPurchasePrice

I believe it should be:
performanceRate = (sumOfSevenDayAverage - sumOfPurchasePrice) / sumOfPurchasePrice

and:

Charisma/api/app/main.py

Line 129 in d6c1b7b

historicalEthRate = currentEthPrice - ethPriceAtTimeOfFirstMint / ethPriceAtTimeOfFirstMint

I believe it should be:
historicalEthRate = (currentEthPrice - ethPriceAtTimeOfFirstMint) / ethPriceAtTimeOfFirstMint