How would I calculate which of the 2 options is the most efficient use of the capital? With $5,000 of capital ... 1.) I can purchase and resell 20 units for a $1000 profit 2.) I can purchase and resell 200 units for a $1500 profit Obviously option #2 is the most profitable but also requires 10x the work. Option #1 has a better profit margin, but less return on investment. Outside of determining which aspect is more important that the other, is there a way to determine which is the most efficient use of the capital with the given information? ..or am I missing another variable ?