Answer:
The data this question is based on is too much to paste here so I will just answer based on it but without attaching it.
1. $1,484 million (Decrease)
They owed $1,484 million in salaries and related expenses at January 29, 2017.
In 2016 the figure was $1,515 million. Difference is:
= 1,484 - 1,515
= -$31 million ⇒ This is a decrease.
2. The revenue is deferred until the goods or services are provided to the customer.
As should be the case when it comes to the Revenue Recognition principle of the Accrual methods, revenue will only be recognized after the relevant goods and services have been provided to the customer. Until then it is classified as deferred revenue.
3. debit Deferred Revenue, credit Net Sales Revenue
Gift cards are to be considered deferred revenue because even though Home Depot have received payment for the cards, they have not supplied any goods for it. When the cards are then used, the deferred revenue should be debited to reduce it and Net Sales revenue should be credited to recognize it as revenue for the period.