The Good Guys engaged in the following transactions during April of the current year $($all

expenses, purchases and sales include GST at a rate of $10\%,$ values to the nearest integer$)$:

April $18$: Sold inventory on credit terms of $\frac{2}{10}\frac{n}{30},$$$3960($cost$,$ net of GST$,$ $$2256).$

April $22$: Received returned goods from the customer of the $18$ June sale, $$1584($cost$,$ net

of GST$,$ $$816).$

April $28$: Received cash in full settlement of the account from the customer who purchased

inventory on $18$ April, less the return on $22$ April.

Journalise the transactions. Narrations are not required $(9$ marks available$).$