Cube and Triangular Pyramid

tote bag, hand embroidered shape with silk thread on cotton, cotton lining

The price of each product, the exchange value, is calculated by the hourly rate that Yuchen earned as a hostess working in a restaurant, multiplied by how many hours she has spent on this product, in addition to the cost of the raw materials.

$13/h x 12.7h + $12 = $177.1