Jammer Company uses a weighted average perpetual inventory system and reports the following:

$\backslash$table$[[$Date$,$Activities,Units Acquired at Cost,Units Sold at Retail$],[$August $2,$Purchase,$10$ units a $$12=$$$120,],[$August $18,$Purchase,$15$ units a $$15=$$$225,],[$August $29,$Sales,,$20$ units sold$],[$August $31,$Purchase,$14$ units @$$16=$$$224,]]$

What is the per unit value of ending inventory on August $31?$ Answers should be rounded to the nearest cent.

Multiple Choice

$$12\mathrm{.}00$

$$13\mathrm{.}80$

$$15,42$

$$16\mathrm{.}00$