Revenue recognition $-$ Note $9($a$)$

Hop sells fitness equipment offering installation and technical support services. The individual price of each product are as follows:

Sale price of goods $550$

Installation $50$

One$-$year service $100$

Hop sold equipment on $1$ January $20$X$9,$ charging $560$ for the goods, including installation and one year$$s service. Hop only offers discounts when customers purchase a package of products together. The $560$ has been included within revenue in the trial balance above.