Answer:
$2,700
Step-by-step explanation:
Computation of the given data are as follows:
October sales = $2,700
November sales = $4,050
As the expiry of cards is of 2 months.
Then, of the sale of November,
Redemption in November = $405
Redemption in December = $945
So, Deferred revenue = November sales - November sales - Redemption in December
= $4,050 - $405 -$945
= $2,700