price of $$86$ per $20$ and $2\mathrm{.}800$ units on December $22,$ all i the product as follows:

$\backslash$table$[[\backslash$table$[[$January $1$ beginning inventory$],[$Purchases:$]],$S$6$e units es $31,$per unit$],[\backslash$table$[[$February $20],[$May $16]],1,460$ units es $33,$per unit$],[$December $11,660$ units es $37,$per unit$],[$Total$,\backslash$table$[[\frac{3,260\text{u}\text{n}\text{i}\text{t}\text{s}}{5,940\text{u}\text{n}\text{i}\text{t}\text{s}}38$