Weighted Average Example
Suppose Lisa runs a beauty store and decides to purchase lipstick to sell to customers. She opts to buy 40 lipsticks at the beginning of the year for $10 each. Halfway through the year, she decides to order a further 30 at $15, and then another 20 lipsticks at $20 each at the end of the year. Lisa’s stock consists of 90 lipsticks, and by the end of the period, she sells 15 of them.
She will need to use the weighted average costing method to determine the cost of units sold. Lisa calculates this number by taking the total inventory purchased in the year, $1250, dividing it by the total number of lipstick units, 90. The average cost of lipstick would then be $13.89, so she, therefore, sold 15 lipsticks at $13.89, for a total of $208.35.