All inputs must be multiplied by 10^18
All outputs must be divided by 10^18
spotPrice (uint256) : current floor price of an asset (NFT)
strikePrice (uint256): amount of that asset you would like to protect (must be < spotPrice)
iv (uint256): implied volatility (300% = 3)
time (uint256): month = 1/12 = .0833
riskFree (int256): 2.25% = 0.0225