module 4: This assignment taught me the basic of retail math.
Not knowing what to do or where to start in the quantitative side of
buying, this module allowed me to learn the basics such as 
markups, cumulative markups and how to interpret beginning inventory
and purchases.
module 14: this module gave me a more advanced look at markups.
it was very helpful in understanding how markups affect price and profit,
and gave me an insight on budgeting and planning when purchasing product.