R:R ratio 1:4.7 or 1:2 ($1 / $4.67 or $2.30 / $4.67)
Position Size: 'R' x Account_Size / Risk
Where 'R' is the percent of your account you are willing to lose (typically <2%) Account_Size is your total risk capital Risk is either $1.00 or $2.30 depending where you put the SL
Ex. If you are risking 2% per trade, your risk capital is $10,000 and you put the SL under previous low:
Position Size= 2% x $10,000 / $1.00 = 200 Shares (or 87 shares with the SL under the LVN)